straight-hole drilling的意思|示意

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钻直井

straight-hole drilling的网络常见释义

钻直井 ... 钻重：drilling weight 钻直井：straight-hole drilling 钻粘泥层用的钻头：gumbo bit ...

straight-hole drilling相关例句

Horizontal double sided NC combined drilling machine is specially designed for the machining of main shaft journal hole and crank arm journal straight oil hole of crankshaft with six cylinders.

针对加工六缸曲轴主轴颈孔、连杆颈直油孔的需要而设计的卧式双面多工位数控钻削组机。