The driller sets the drill string in the slips or elevator.
司钻把钻具坐在卡瓦或吊卡上。
This paper describes the mathematical model derivation of gun drill point with planar flanks, for given sets of design parameters.
本文根据选定的枪钻设计参数，导出平面型后刀面枪钻钻尖的数学模型。
These are great sets because they are intense and speed-focused. Emphasizing the drill work keeps the stroke together. It eliminates bad technique - a common hurdle when training breaststroke.
这些都是很好的练习，因为他们强度很高，而且要求有速度。强调这些练习保持好的姿势。它可以消除错误的技术——在训练蛙泳时的一个普遍的障碍。
Existing factory more than 100 persons, own various lather with automatic half, punching machine, drill the bed etc. the machine equipments 60 sets.
现有工厂100多人，拥有各种半自动车床，冲床、钻床等机械设备60台。
CNC lathe 5 sets, CNC milling machine 3 sets, several grinder, milling, rocker drill press, and thread incision machine.
数控车5台，加工中心3台，磨床、铣床、摇臂钻床、线切割多台。
This company sets its own lace factory and net drill factory and keeps affiliation relation with several manufacturers.
本公司自设花边厂和网钻厂并和多家厂家保持联营关系。
This company sets its own lace factory and net drill factory and keeps affiliation relation with several manufacturers.
本公司自设花边厂和网钻厂并和多家厂家保持联营关系。
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