The manual engraving machines are being replaced by NC engraving machines in production gradually.

数控雕刻机床正逐渐取代手动雕刻机床在生产加工中所占的主体地位。

youdao

The manual engraving machines are being replaced by NC engraving machines in production gradually.

数控雕刻机床正逐渐取代手动雕刻机床在生产加工中所占的主体地位。

youdao