一、课文阅读(1)Lathe is a machine tool for holding andturning metal, wood, plastic or other materialagainst a cutting tool to form a cylindrical pro-duct or part. (2)It also drills, bores, polishes,grinds, makes threads and performs other opera-tions. (3)Its principal parts are the head stock(attached to the bed or base of the machine),which holds one end of the material in a rotatingchuck, the tailstock which holds the other end,moves along the bed, and can be clamped inposition at any point, the tool holder and thepower feed compeising the drive end and itsmotive parts. 一, Text Reading (1) Lathe is a machine tool for holding and drawing metal, wood, plastic or other materialagainst a cutting tool to form a cylindrical pro-duct or part. (2) It also drills, bores, polishes, grinds, makes threads and perform other opera-tions. (3) Its principal parts are the head stock (attached to the bed or base of the machine), which holds one end of the material in a rotatingchuck, the tailstock which holds the other end, moves along the bed, and can be clamped inposition at any point, the tool holder and thepower feed compeising the drive end and itsmotive parts.