nc lathe短语¹³¹⁶²⁰⁺³ 基本例句 数值控制车床 Based on the teaching NC lathe, this essay analyzes the principle of electrical control work, gives some typical cases on the faults, meanwhile introduces the solutions to these faults. 本文就教学用经济型数控车床，分析电气控制工作原理，列举典型的电气故障事例，讲述排除方法。 chemyq