1.Assembly 總成
　　A: What is an assembly exactly?
　　B: Assembly is a component made of more than one part.
　　A:總成到底是什么?
　　B:總成是由一個以上零件組成的部件。

　　2.A-Surface A級表面
　　A: What about A-Surface?
　　B: A-Surface is the surface of a product that a customer can see.
　　A:那A級表面又是什么呢?
　　B:A級表面是指顧客能看到的產品表面。

　　3.B-Surface B級表面
　　A: They also talk about B-Surface. What is that?
　　B: B-Surface is the surface of a component that you can't see in the normal service condition.
　　A:他們還說到B級表面,那是什么?
　　B:B級表面是在正常使用狀態下看不到的部件表面。

　　4.Bushing 軸套
　　A: Self-lubricated bushing is very popular in western countries.
　　B: It's gaining market in China as well.
　　A:自動潤滑軸套在西方國家很流行。
　　B:它也進入了中國市場。

　　5.Detailed drawing 零件圖
　　A: What is a detailed drawing?
　　B: It's a drawing of an individual part or component.
　　A:零件圖指什么?
　　B:是指單個零部件的圖紙。