用钻头，螺钻或旋转切割机在加工或增大孔的大小。
To reproduce or increase the size of a hole by use of a drill, auger or rotary cutting tool.
爱荷华州玉米农，詹森·希松是爱荷华州金斯敦市附近的一个6代相传的玉米农民，一边为他的联合收割机出仓，一边照看着他的地螺钻。
Jason Hinson, a sixth-generation corn farmer near Kingston, Iowa, keeps an eye on his auger as he unloads his combine on the fly.
利用多轴组合钻解决瓶颈结构中螺孔的钻削问题，以提高劳动生产率，满足零件大批量生产的需要。
Describes how to solve the problems of drilling and cutting for screws in the structure of bottle neck, to improve production rate and meet the demand of batch production for spare parts.
利用多轴组合钻解决瓶颈结构中螺孔的钻削问题，以提高劳动生产率，满足零件大批量生产的需要。
Describes how to solve the problems of drilling and cutting for screws in the structure of bottle neck, to improve production rate and meet the demand of batch production for spare parts.
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