The Lathe And Its Construction A lathe is a machine tool used primarily for producing surfaces of revolution and flat edges. Based on their purpose, construction, number of tools that can simultaneously be mounted and degree of automation, lathes-or, more accurately, lathe-type machine tools-can be classified as follows:

Vocabulary 1(paragraph 1-2) 1. primarily adv.首先,起初,主要地,根本上 2. lathe.车床,vt用车床加工 3. revolution.革命,旋转,公转 revolution surface回转面 4.flat平面,平台 5.edge刃,主切削刃,边