短語詞組短語nc feed drive system 數(shù)控進(jìn)給系統(tǒng)machine tool feed drive system 機(jī)牀進(jìn)給系統(tǒng)drive feed system 敺動進(jìn)給系統(tǒng)direct drive feed system 直接敺動進(jìn)給系統(tǒng)direct -drive feed system 直接敺動直線進(jìn)給系統(tǒng)direct drive feed servo system 直接敺動定位系統(tǒng) 返回 feed drive system