机电专业英语高职层次资料

书名：机电专业英语 ISBN:978-7-111-43709-3 作者：严振宁 出版社：机械工业出版社 本书配有电子课件

Catalog 1. Unit1 Engineering Drawing 2. Unit 2 Mechanical Properties of Metals 3. Unit3 Mechanical Parts 4. Unit4 Tolerance and Fits 5. Unit5 Machine Tools 6. Unit6 Machining 7. Unit7 Basic knowledge of fitter 8. Unit8 Welding 9. Unit9 Mechatronics 10.Unit10 CNC Machines

Unit1 Engineering Drawing-Text 1.Engineering drawing covers a detailed structure of a single part. There are many types of engineering drawings.

Unit1 Engineering Drawing-Text 2.But the general arrangement of all these parts is shown in an assembly drawing.

Unit1 Engineering Drawing-Text 3.Assembly drawings consist of the following features: 1).Dimensions: 2).Internal parts: 3).Parts list:

Unit1 Engineering Drawing-Text 4.For example, the column of “Quantity” means the quantity of the parts, the column of “Material” is used for components that are being made in the company. And the “Remarks” column is useful for specifying a manufacture’s part number.

Unit1 Engineering Drawing---Words and Expressions

arrangement [ reind m nt] n. 排列，安排 assembly [ sembli] n. 集合，装配 feature [ fi:t ] n. 特色，特征 dimension ][di men n] n. 尺寸，尺度 view [vju:] n. 视图 list [list] n. 目录，列表，数据清单 identify [ai dentifai] vt. 识别，鉴别，确定

Unit1 Engineering Drawing---Words and Expressions manufacture [ mænju fækt ] n. 制造 者，制造商 consist of 由……组成 engineering drawing 工程制图 assembly drawing 装配图 sectional view 截面图，断面图，剖视图 parts list 零件清单

Unit1 Engineering DrawingSynchronous reading ( )1. Before you start your engineering drawing, the first thing is to make best use of the space. ( )2. There are at least five rules you should obey before you producing an engineering drawing. ( )3. Every engineering drawing must include an information box. ( )4. The Scale is very important and it have effect on the final size of the product. ( )5. The same one to finish the drawing and checking is allowed.

Unit 2 Mechanical Properties of Metals-Text 1. Metals have played an important part in man’s activities for many centuries. Wood and stone are both older in use, and later they have been supplanted by metals to a considerable extent.

Unit 2 Mechanical Properties of Metals-Text 2.Metals have a great importance because of their useful properties. Metals are much stronger and harder than wood. Metal is not so brittle as stone. Strength, hardness and plasticity of metals are the properties which make metals very useful for industry. It is possible to find some plastic wood but it is much softer than many metals have a combination of these three useful properties.

Unit 2 Mechan

ical Properties of Metals-Text 3.Metals are very important in industry. All machines have metal parts and some of them consist only of metal parts.

Unit 2 Mechanical Properties of Metals-Words and Expressions century [′sent uri] n. 世纪 supplant [s ′pla:nt] v. 代替，取代 considerable [ken′siderebl] a. 相当大(或多) 的 extent [iks′tent] n. 程度 brittle [britl] a. 易碎的，脆的 strength [stre θ] n. 力，力量，强度 plasticity [plæs′tisiti] n. 可塑性，成形性

Unit 2 Mechanical Properties of Metals-Words and Expressions combination [k mbi′nei en] n. 结合 part [pa:t] n. 零件，部件 consist [k n′sist]v. 由…构成，由…组成 play … part 起…作用 to a considerable extent 在极大的程度上 because of 因为 not so…as 没有……那样

Unit 2 Mechanical Properties of Metals-Synchronous reading ( )1. The material of metal can to classified into three categories. ( )2. Aluminum is lightweight and softer than steel. ( )3. Stainless steel is a relatively hard material and tends to shorten the life of the cutting tools. ( 4. Typical carbon steel can be subjected to various heat treatments. ( )5. The brass has not sogood soldering properties.

Unit3 Mechanical Parts -Text 1.Machine elements are elementary mechanical parts used as building blocks for the construction of a device, apparatus or machinery. 2. The most common example of machine elements is a gear. Gear is a toothed wheel. The rotation of a gear on a hub or shaft drives other gears rotating faster or slower depending upon the number of tooth on the basic wheels.