机械专业英语论文1500字怎么写

机械专业英语论文1500字怎么写

这里有很多的，你可以找下有没有?我找了好长时间才找到的哦中文免费论文地址集锦 一、 综合类 1、蓝之韵论文 门类较全。 2、学生大论文中心 3、蜂朝无忧论文网 门类很全。 4、论文下载中心 门类很全。 5、论文帝国 二、 教育类 1、教研论文交流中心 以中小学教育为主，基础教育、英语教学文章居多。 2、教育教学论文网 以教育论文为主，包含：语文论文 美术论文 物理论文 化学论文 英语论文 历史论文 德育论文 教学论文 数学论文 音乐论文 生物论文 自然论文 体育论文 地理论文 摄影论文 劳动技术 农村教育 毕业论文 素质论文 医学论文 电子电器学 思维科学 计算机论文 活动课教学 书法篆刻论文 创新教育研究 心理健康教育 西部教育论文 信息技术论文 3、教育论文 -/asp 4、中国园丁网论文大观 5、北大附小学校教师的文章： 三、 专业类 1、优秀论文杂志 以科技类为主。 2、论文资料网 以财经经济管理类为主。 3、法律图书馆 -/ 文如其名。 4、法学论文资料库 -/lw/ 文如其名。 5、中国总经理网论文集 6、mba职业经理人论坛 7、中国农业在线-农业论文 8、体育论文 9、财经学位论文下载中心 10、公开发表论文_深圳证券交易所 11、中国路桥资讯网论文资料中心 12、论文商务中心 13、法律帝国： 四、 论文写作教学类 1、学术论文 其实是学术论文的写作网站。 五、 博硕士论文 1、论文统计 实际上就是万方的论文统计。 2、台湾博硕士论文咨讯网 3、北京大学学位论文样本收藏 4、学位论文 （清华大学） ] 中国科技论文在线 论文中国 : 新浪论文网分类:_dir/jy/lw/ 中国论文联盟: 大学生论文库 论文资料网: 论文下载中心: 毕业论文网: 学位论文: 无忧论文网: 北京语言文化大学论文库:

去国外的大学教授主页上找吧，一般他们都会公布自己写的论文。这上面都一些机械控制的论文，不知道是不是符合你的要求 上面那个连接随便点一个进去就是一篇论文。。。 这就是论文了 这是第二篇

自己写好了 这个不要求别人

机械专业英语论文1500字

这里有很多的，你可以找下有没有?我找了好长时间才找到的哦中文免费论文地址集锦 一、 综合类 1、蓝之韵论文 门类较全。 2、学生大论文中心 3、蜂朝无忧论文网 门类很全。 4、论文下载中心 门类很全。 5、论文帝国 二、 教育类 1、教研论文交流中心 以中小学教育为主，基础教育、英语教学文章居多。 2、教育教学论文网 以教育论文为主，包含：语文论文 美术论文 物理论文 化学论文 英语论文 历史论文 德育论文 教学论文 数学论文 音乐论文 生物论文 自然论文 体育论文 地理论文 摄影论文 劳动技术 农村教育 毕业论文 素质论文 医学论文 电子电器学 思维科学 计算机论文 活动课教学 书法篆刻论文 创新教育研究 心理健康教育 西部教育论文 信息技术论文 3、教育论文 -/asp 4、中国园丁网论文大观 5、北大附小学校教师的文章： 三、 专业类 1、优秀论文杂志 以科技类为主。 2、论文资料网 以财经经济管理类为主。 3、法律图书馆 -/ 文如其名。 4、法学论文资料库 -/lw/ 文如其名。 5、中国总经理网论文集 6、mba职业经理人论坛 7、中国农业在线-农业论文 8、体育论文 9、财经学位论文下载中心 10、公开发表论文_深圳证券交易所 11、中国路桥资讯网论文资料中心 12、论文商务中心 13、法律帝国： 四、 论文写作教学类 1、学术论文 其实是学术论文的写作网站。 五、 博硕士论文 1、论文统计 实际上就是万方的论文统计。 2、台湾博硕士论文咨讯网 3、北京大学学位论文样本收藏 4、学位论文 （清华大学） ] 中国科技论文在线 论文中国 : 新浪论文网分类:_dir/jy/lw/ 中国论文联盟: 大学生论文库 论文资料网: 论文下载中心: 毕业论文网: 学位论文: 无忧论文网: 北京语言文化大学论文库:

分很少啊 抽时间翻译 请稍等

机械专业英语论文1500字体

可以上马棚机械网上去找，很多的。

A Contrastive Study between English and Chinese Idioms（题目：二号，黑体，加粗，居中，除了英语小词外，其他单词首字母都要大写；另外：除了题目外，论文中所有英文的字体均采用“Times New Roman”）外国语学院 2001级英语教育1030120011XX XXX 指导老师：XXX（学院、专业、学号、作者姓名、指导教师姓名（小四号宋体字，加粗），依次排印在论文题目下，上空二行，居中）【Abstract】 This paper centers on the different expressions of ……（英文摘要：上空二行；题目采用五号“Times New Roman”字体，加粗，置于粗体方括号【】内，顶格放置；随后的内容与前面的粗体方括号【】之间空一格，不用其他任何标点符号；采用五号“Times New Roman”字体，不加粗；单倍行距。）【Key Words】 idiom; comparison; English; Chinese （英文关键词：题目采用五号“Times New Roman”字体，加粗，两个单词的首字母要大写，置于粗体方括号【】内，顶格放置；随后的内容与前面的粗体方括号【】之间空一格，不用任何其他标点符号，采用五号“Times New Roman”字体，不加粗，除了专有名词外，其他单词的首字母不大写，各单词之间用分号“；”隔开，分号之后空一格；最后一个关键词之后不用任何标点符号；单倍行距。） Introduction (顶格，除了第一个单词及专有名词外，其他单词首字母都不要大写；标题最后不用任何标点符号，上空两行) In both English and Chinese， … So， this essay is trying to focus on the differences between Chinese and English idoms in terms of their essential meaning， customary usage and typical expression (Chang Liang， 1993:44; Li Guangling， 1999) (段落第一行缩进4个英文字符；夹注的标注法：出现在夹注中的作者必须与文后的参考文献形成一一对应关系；注意一个或多个作者间的标点符号，时间、页码等的标注法；另外，汉语参考文献的作者要以拼音形式出现，不能出现汉语姓氏；夹注出现在标点符号之前) The similarities between English idioms and Chinese idioms In English， … And it can be clearly seen in the below examples: (1) I don’t know。我不知道。 (2) I am not a 我不是诗人。 (正文中的例子以（1），（2）…为序号排列，直至最后一个例子；而①， ②…则为脚注或尾注的上标序号)… The differences between English idioms and Chinese 1 The characteristics of English idioms（正文章节序号编制：章的编号： ，， ，…；节的编号：1，2…，1，2…；小节的编号为：1， 2…。小节以下层次，采用希腊数字加括号为序，如（i），（ii）…；之后再采用字母加括号，如(a)， (b)，…;每章题目左顶格，小四号字，加粗；每节（及小节以下）题目左顶格，小四号字，不加粗但要斜体；所有章节的题目都单独一行，最后不加任何标点符号） … In conclusion， …2 The characteristics of Chinese idioms … Feng (1998) found some problems as shown in the following examples (注意此句中夹注的另一种写法): (9) We never know the worth of water till the well is (10) People take no thought of the value of time until they lose …1 The analysis of the differences between English and Chinese idioms …(i) … …(ii) … … Conclusion …Bibliography (References) （小四号，加粗，后面不加任何标点符号）Sanved， The Oxford book of American literary anecdotes[C] New York: OUP，

分很少啊 抽时间翻译 请稍等

一、标题　　一篇较长的英语论文(如英语毕业论文)一般都需要标题页，其书写格式如下:第一行标题与打印纸顶端的距离约为打印纸全长的三分之一，与下行(通常为by，居中)的距离则为5cm，第三、第四行分别为作者姓名及日期(均居中)。　　如果该篇英语论文是学生针对某门课程而写，则在作者姓名与日期之间还需分别打上教师学衔及其姓名(如:D/PCPrager)及本门课程的编号或名称(如:English 734或British Novel)。打印时，如无特殊要求，每一行均需double space，即隔行打印，行距约为6cm(论文其他部分行距同此)。　　二、提纲　　英语论文提纲页包括论题句及提纲本身，其规范格式如下:先在第一行(与打印纸顶端的距离仍为5cm左右)的始端打上 Thesis 一词及冒号，空一格后再打论题句，回行时左边须与论题句的第一个字母上下对齐。　　主要纲目以大写罗马数字标出，次要纲目则依次用大写英文字母、阿拉伯数字和小写英文字母标出。各数字或字母后均为一句点，空出一格后再打该项内容的第一个字母；处于同一等级的纲目，其上下行左边必须对齐。　　需要注意的是，同等重要的纲目必须是两个以上，即:有Ⅰ应有Ⅱ，有A应有B，以此类推。如果英文论文提纲较长，需两页纸，则第二页须在右上角用小写罗马数字标出页码，即ii(第一页无需标页码)。　　三、摘要　　1、英文摘要是应用符合英文语法的文字语言，提供论文内容梗概为目的的短文。（内容基本与中文摘要相同，但不用完全逐句对应）。　　2、英文题目、摘要、关键词自成一页（1页即可），放在中文摘要页之后。　　3、英文字体与行间距： 统一使用“西文字体”中的“Times New Roman”，5倍行间距。　　4、英文题目： 使用三号字加粗。　　5、英文摘要： “Absract”顶格，使用四号字，并加粗。　　英文摘要具体内容使用四号字。　　6、英文关键词： “Key Words”顶格，使用四号字并加粗。　　四、正文　　有标题页和提纲页的英语论文，其正文第一页的规范格式为:论文标题居中，其位置距打印纸顶端约5cm，距正文第一行约5cm。段首字母须缩进五格，即从第六格打起。　　正文第一页不必标页码(但应计算其页数)，自第二页起，必须在每页的右上角(即空出第一行，在其后部)打上论文作者的姓，空一格后再用阿拉伯数字标出页码；阿拉伯数字(或其最后一位)应为该行的最后一个空格。　　在打印正文时尚需注意标点符号的打印格式，即:句末号(句号、问号及感叹号)后应空两格，其他标点符号后则空一格。　　五、文中引述　　正确引用作品原文或专家、学者的论述是写好英语论文的重要环节；既要注意引述与论文的有机统一，即其逻辑性，又要注意引述格式 （即英语论文参考文献）的规范性。　　引述别人的观点，可以直接引用，也可以间接引用。无论采用何种方式，论文作者必须注明所引文字的作者和出处。美国学术界通行的做法是在引文后以圆括弧形式注明引文作者及出处。　　六、文献目录　　论文作者在正文之后必须提供论文中全部引文的详细出版情况，即文献目录页。美国高校一般称此页为 Works Cited， 其格式须注意下列几点:　　目录页应与正文分开，另页打印，置于正文之后。　　目录页应视为英语论文的一页，按论文页码的顺序在其右上角标明论文作者的姓和页码；如果条目较多，不止一页，则第一页不必标出作者姓和页码(但必须计算页数)，其余各页仍按顺序标明作者姓和页码。　　标题Works Cited与打印纸顶端的距离约为5cm，与第一条目中第一行的距离仍为6cm；各条目之间及各行之间的距离亦为6cm，不必留出更多空白。　　各条目内容顺序分别为作者姓、名、作品名、出版社名称、出版地、出版年份及起止页码等；各条目应严格按各作者姓的首字母顺序排列，但不要给各条目编码，也不必将书条与杂志、期刊等条目分列。各条目第一行需顶格打印，回行时均需缩进五格，以将该条目与其他条目区分开来。　　英语论文摘要又称文摘，是论文的重要组成部分，它是以提供文献内容梗概为目的，不加评论和补充解释，简明、确切地记述文献重要内容的短文。摘要应具有独立性和自明性，并拥有与文献同等量的主要信息，即不需阅读全文，就可获得重要的信息。　　摘要通常置于文题之后，文章之首。在论文发表后，论文摘要常被文献检索系统所收集。英语论文摘要一般为200-300单词，并有与英文摘要表达观点一致的中文摘要与之对应。（内容来源：学术堂）

机械专业英语论文1500字数

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可以上马棚机械网上去找，很多的。

分很少啊 抽时间翻译 请稍等

机械专业英语论文3000字怎么写

A machine tool is a powered mechanical device， typically used to fabricate metal components of machines by machining， which is the selective removal of The term machine tool is usually reserved for tools that used a power source other than human movement， but they can be powered by people if appropriately set Many historians of technology consider that the true machine tools were born when direct human involvement was removed from the shaping or stamping process of the different kinds of The earliest lathe with direct mechanical control of the cutting tool was a screw-cutting lathe dating to about [1] This lathe "produced screw threads out of wood and employed a true compound slide rest"The first machine tools offered for sale ( commercially available) were constructed by one Matthew Murray in England around [2]Contents [hide]1 Overview 2 Examples 3 See also 4 References 5 Bibliography 6 Further reading 7 External links [edit] OverviewMachine tools can be powered from a variety of Human and animal power are options， as is energy captured through the use of However， modern machine tools began to develop only after the development of the steam engine， which led to the Industrial R Today， most machine tools are powered by Machine tools can be operated manually， or under automatic Early machines used flywheels to stabilize their motion and had complex systems of gears and levers to control the machine and the piece being worked Soon after World War II， the numerical control (NC) machine was NC machines used a series of numbers punched on paper tape or punch cards to control their In the 1960s， computers were added to give even more flexibility to the Such machines became known as computerized numerical control (CNC) NC and CNC machines could precisely repeat sequences over and over， and could produce much more complex pieces than even the most skilled tool Before long， the machines could automatically change the specific cutting and shaping tools that were being For example， a drill machine might contain a magazine with a variety of drill bits for producing holes of various Previously， either machine operators would usually have to manually change the bit or move the work piece to another station to perform these different The next logical step was to combine several different machine tools together， all under computer These are known as machining centers， and have dramatically changed the way parts are From the simplest to the most complex， most machine tools are capable of at least partial self-replication， and produce machine parts as their primary [edit] ExamplesExamples of machine tools are:Broaching machine Drill press Gear shaper Hobbing machine Hone Lathe Screw machines Milling machine Shaper Saws Planer Stewart platform mills Grinding machines When fabricating or shaping parts， several techniques are used to remove unwanted Among these are:Electrical discharge machining Grinding (abrasive cutting) Multiple edge cutting tools Single edge cutting tools Other techniques are used to add desired Devices that fabricate components by selective addition of material are called rapid prototyping Several regions of the United States became centers for machine tool development between 1800 and 1950， including Philadelphia， Pennsylvania; Cincinnati， Ohio; Rockford， Illinois; Providence， Rhode Island] Springfield， Vermont; Windsor， Vermont; Hartford， Connecticut; and Bridgeport， C 给你

原文：9 MACHINABILITYThe machinability of a material usually defined in terms of four factors:1、$ l m I `5 L* eSurface finish and integrity of the machined part;2、; u: I% F/ b$ t( O" ?' I2 MTool life obtained;3、1 F }: a% W1 W5 R l7 @* q; jForce and power requirements;4、 p) @0 }5 c* S+ I: IChip Thus， good machinability good surface finish and integrity， long tool life， and low force And power As for chip control， long and thin (stringy) cured chips， if not broken up， can severely interfere with the cutting operation by becoming entangled in the cutting Because of the complex nature of cutting operations， it is difficult to establish relationships that quantitatively define the machinability of a In manufacturing plants， tool life and surface roughness are generally considered to be the most important factors in Although not used much any more， approximate machinability ratings are available in the example 1 Machinability Of Steels6 }" `- x) E* V* T+ DBecause steels are among the most important engineering materials (as noted in Chapter 5)， their machinability has been studied The machinability of steels has been mainly improved by adding lead and sulfur to obtain so-called free-machining Resulfurized and Rephosphorized ， m# n- K R; @Sulfur in steels forms manganese sulfide inclusions (second-phase particles)， which act as stress raisers in the primary shear As a result， the chips produced break up easily and are small; this improves The size， shape， distribution， and concentration of these inclusions significantly influence Elements such as tellurium and selenium， which are both chemically similar to sulfur， act as inclusion modifiers in resulfurized Phosphorus in steels has two major It strengthens the ferrite， causing increased Harder steels result in better chip formation and surface Note that soft steels can be difficult to machine， with built-up edge formation and poor surface The second effect is that increased hardness causes the formation of short chips instead of continuous stringy ones， thereby improving Leaded S A high percentage of lead in steels solidifies at the tip of manganese sulfide In non-resulfurized grades of steel， lead takes the form of dispersed fine Lead is insoluble in iron， copper， and aluminum and their Because of its low shear strength， therefore， lead acts as a solid lubricant (Section 11) and is smeared over the tool-chip interface during This behavior has been verified by the presence of high concentrations of lead on the tool-side face of chips when machining leaded When the temperature is sufficiently high-for instance， at high cutting speeds and feeds (Section 6)—the lead melts directly in front of the tool， acting as a liquid In addition to this effect， lead lowers the shear stress in the primary shear zone， reducing cutting forces and power Lead can be used in every grade of steel， such as 10xx， 11xx， 12xx， 41xx， Leaded steels are identified by the letter L between the second and third numerals (for example， 10L45) (Note that in stainless steels， similar use of the letter L means “low carbon，” a condition that improves their corrosion )However， because lead is a well-known toxin and a pollutant， there are serious environmental concerns about its use in steels (estimated at 4500 tons of lead consumption every year in the production of steels) Consequently， there is a continuing trend toward eliminating the use of lead in steels (lead-free steels) Bismuth and tin are now being investigated as possible substitutes for lead in Calcium-Deoxidized S An important development is calcium-deoxidized steels， in which oxide flakes of calcium silicates (CaSo) are These flakes， in turn， reduce the strength of the secondary shear zone， decreasing tool-chip interface and Temperature is correspondingly Consequently， these steels produce less crater wear， especially at high cutting Stainless S Austenitic (300 series) steels are generally difficult to Chatter can be s problem， necessitating machine tools with high However， ferritic stainless steels (also 300 series) have good Martensitic (400 series) steels are abrasive， tend to form a built-up edge， and require tool materials with high hot hardness and crater-wear Precipitation-hardening stainless steels are strong and abrasive， requiring hard and abrasion-resistant tool The Effects of Other Elements in Steels on M The presence of aluminum and silicon in steels is always harmful because these elements combine with oxygen to form aluminum oxide and silicates， which are hard and These compounds increase tool wear and reduce It is essential to produce and use clean Carbon and manganese have various effects on the machinability of steels， depending on their Plain low-carbon steels (less than 15% C) can produce poor surface finish by forming a built-up Cast steels are more abrasive， although their machinability is similar to that of wrought Tool and die steels are very difficult to machine and usually require annealing prior to Machinability of most steels is improved by cold working， which hardens the material and reduces the tendency for built-up edge Other alloying elements， such as nickel， chromium， molybdenum， and vanadium， which improve the properties of steels， generally reduce The effect of boron is Gaseous elements such as hydrogen and nitrogen can have particularly detrimental effects on the properties of Oxygen has been shown to have a strong effect on the aspect ratio of the manganese sulfide inclusions; the higher the oxygen content， the lower the aspect ratio and the higher the In selecting various elements to improve machinability， we should consider the possible detrimental effects of these elements on the properties and strength of the machined part in At elevated temperatures， for example， lead causes embrittlement of steels (liquid-metal embrittlement， hot shortness; see Section 3)， although at room temperature it has no effect on mechanical Sulfur can severely reduce the hot workability of steels， because of the formation of iron sulfide， unless sufficient manganese is present to prevent such At room temperature， the mechanical properties of resulfurized steels depend on the orientation of the deformed manganese sulfide inclusions (anisotropy) Rephosphorized steels are significantly less ductile， and are produced solely to improve 2 Machinability of Various Other MetalsAluminum is generally very easy to machine， although the softer grades tend to form a built-up edge， resulting in poor surface High cutting speeds， high rake angles， and high relief angles are Wrought aluminum alloys with high silicon content and cast aluminum alloys may be abrasive; they require harder tool Dimensional tolerance control may be a problem in machining aluminum， since it has a high thermal coefficient of expansion and a relatively low elastic Beryllium is similar to cast Because it is more abrasive and toxic， though， it requires machining in a controlled Cast gray irons are generally machinable but Free carbides in castings reduce their machinability and cause tool chipping or fracture， necessitating tools with high Nodular and malleable irons are machinable with hard tool Cobalt-based alloys are abrasive and highly work- They require sharp， abrasion-resistant tool materials and low feeds and Wrought copper can be difficult to machine because of built-up edge formation， although cast copper alloys are easy to Brasses are easy to machine， especially with the addition pf lead (leaded free-machining brass) Bronzes are more difficult to machine than Magnesium is very easy to machine， with good surface finish and prolonged tool However care should be exercised because of its high rate of oxidation and the danger of fire (the element is pyrophoric)Molybdenum is ductile and work-hardening， so it can produce poor surface Sharp tools are Nickel-based alloys are work-hardening， abrasive， and strong at high Their machinability is similar to that of stainless Tantalum is very work-hardening， ductile， and It produces a poor surface finish; tool wear is Titanium and its alloys have poor thermal conductivity (indeed， the lowest of all metals)， causing significant temperature rise and built-up edge; they can be difficult to Tungsten is brittle， strong， and very abrasive， so its machinability is low， although it greatly improves at elevated Zirconium has good It requires a coolant-type cutting fluid， however， because of the explosion and 3 Machinability of Various Materials; n+ {0 C# N' t: K& D5 Y7 nGraphite is abrasive; it requires hard， abrasion-resistant， sharp Thermoplastics generally have low thermal conductivity， low elastic modulus， and low softening Consequently， machining them requires tools with positive rake angles (to reduce cutting forces)， large relief angles， small depths of cut and feed， relatively high speeds， andproper support of the Tools should be External cooling of the cutting zone may be necessary to keep the chips from becoming “gummy” and sticking to the Cooling can usually be achieved with a jet of air， vapor mist， or water-soluble Residual stresses may develop during To relieve these stresses， machined parts can be annealed for a period of time at temperatures ranging from % Q6 X5 q6 [ C$ F9 Ito / C+ z W( L4 N& I$ }( to )， and then cooled slowly and uniformly to room Thermosetting plastics are brittle and sensitive to thermal gradients during Their machinability is generally similar to that of Because of the fibers present， reinforced plastics are very abrasive and are difficult to Fiber tearing， pulling， and edge delamination are significant problems; they can lead to severe reduction in the load-carrying capacity of the Furthermore， machining of these materials requires careful removal of machining debris to avoid contact with and inhaling of the The machinability of ceramics has improved steadily with the development of nanoceramics (Section 5) and with the selection of appropriate processing parameters， such as ductile-regime cutting (Section 2)Metal-matrix and ceramic-matrix composites can be difficult to machine， depending on the properties of the individual components， ， reinforcing or whiskers， as well as the matrix 4 Thermally Assisted MachiningMetals and alloys that are difficult to machine at room temperature can be machined more easily at elevated In thermally assisted machining (hot machining)， the source of heat—a torch， induction coil， high-energy beam (such as laser or electron beam)， or plasma arc—is forces， (b) increased tool life， (c) use of inexpensive cutting-tool materials， (d) higher material-removal rates， and (e) reduced tendency for vibration and It may be difficult to heat and maintain a uniform temperature distribution within the Also， the original microstructure of the workpiece may be adversely affected by elevated Most applications of hot machining are in the turning of high-strength metals and alloys， although experiments are in progress to machine ceramics such as silicon SUMMARY' k4 F( E u# |: n6 i6 hMachinability is usually defined in terms of surface finish， tool life， force and power requirements， and chip Machinability of materials depends not only on their intrinsic properties and microstructure， but also on proper selection and control of process 因文章太长，译文请点链接%3A///bbs/thread-27361-1-html

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