机械专业英语图解教程
机械零部件和机构 a b r a s i v e d i s c a d j u s t a b l e s p a n n e r A l l e n k e y a n g l e i r o n ( p l a t e ) a n i v i l a r b。Numerical control。
机械专业英语图解教程Tag内容描述：<p>1、P113Numerical controlNumerical control of machine tools may be defined as a method of automation in which various functions of machine tools are controlled by letters, numbers and symbols. Basically a NC machine runs on a program fed to it. The program consists of precise instructions about the manufacturing methodology as well as the movements. For example, what tool is to be used, at what speed, at what feed and to move from which point to which point in what path, all these instructions。</p>
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