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This coincidentally happened at about the same time that nc and APT (Automatically Programmed Tool) first appeared.
CAD与初次出现的NC和APT(自动编程工具)碰巧同时问世。
youdao
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This coincidentally happened at about the same time that nc and APT (Automatically Programmed Tool) first appeared.
CAD与初次出现的NC和APT(自动编程工具)碰巧同时问世。
youdao