英语翻译Recent studies show that of the amount of time an averag

英语翻译
Recent studies show that of the amount of time an average part spent in a shop,only a fraction of that time was actually spent in the machining process.Let us assume that a part spent 50 hours from the time it arrived at a plant as a rough casting or bar stock to the time it was a finished product.During this time,it would be on the machine for only 2.5 hours and e cut for only 0.75 hour.The rest of the time would be spent on waiting,moving,setting up,loading,unloading,inspecting the part,setting speeds and feeds,and changing cutting tools.
NC reduces the amount of non-chip-producing time by selecting speeds and feeds,making rapid moves between surfaces to be cut,using automatic fixtures,automatic tool changing,controlling the coolant,in-process gauging,and loading and unloading the part.These factors,plus the fact that it is no longer necessary to train machine operators,have resulted in considerable savings throughout the entire manufacturing process and caused tremendous growth in the use of NC

手译阿,累啊
Recent studies show that of the amount of time an average part spent in a shop, only a fraction of that time was actually spent in the machining process.
近期的研究表明每个部件在店内的平均时间里只有一部分是工作状态.
Let us assume that a part spent 50 hours from the time it arrived at a plant as a rough casting or bar stock to the time it was a finished product.
假设一个部件在工厂打磨和打记号用了50小时.
During this time, it would be on the machine for only 2.5 hours and e cut for only 0.75 hour. The rest of the time would be spent on waiting, moving, setting up, loading, unloading, inspecting the part, setting speeds and feeds, and changing cutting tools.
这期间只有2.5小时是实际做这些工作的时间,做电切也只用了0.75小时.其余的时间则完全用在等待,运送,配置,装卸,检验,调速与改变电切工具上.
NC reduces the amount of non-chip-producing time by selecting speeds and feeds, making rapid moves between surfaces to be cut, using automatic fixtures, automatic tool changing, controlling the coolant, in-process gauging, and loading and unloading the part.
NC（产品简称）通过选择速率,高速转变切割面,自动改变工具,控制冷却剂,减少了这些不必要的非工作时间,工作中划定规格,和装卸降低了这些不必要的非制造时间.
These factors, plus the fact that it is no longer necessary to train machine operators, have resulted in considerable savings throughout the entire manufacturing process and caused tremendous growth in the use of NC
这些因素,加上不需要训练操作员,简化了整个制造过程中的烦琐,也因为这些,NC被越来越多地使用.