... 定位装置 locating device 定位钻 spotting drill 定向控制阀 directional control valve ...
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动力定位钻井船 dynamic-positioning rig ; dynamically positioned drillship ; dynamic positioning drilling ship
中心系泊定位钻探船 turret moored drilling ship
井底钻头定位器 bottom hole bit locator
钻头定位孔 [机] collared hole
钻机定位 rig spotting
动力定位浮式钻井船 dynamic-positioning drillship
钻孔定位贴 Drill stickers
动力定位半潜式钻井船 dynamic-positioning semisubmersible rig
定位中心钻 start drill
双三角钻臂属于直接定位钻臂，在工作区间可将钎头直接移位到目标位置。
Double triangle boom is a kind of directly positioning mechanism, it can remove the drill rod to a target position directly in its operating range.
割刀与定位钻之间的距离可调，且定位钻钻尖比割刀刀尖向前略伸出一段距离。
The distance between the cutter and the drill is adjustable and the point of drill is located a distance before the point of the cutter.
推导了三种钻模定位误差的通用计算公式和微分近似计算公式，提出了在不同定位误差要求下三种定位钻模适用的加工场合。
The general calculation formulas and differential approximate calculation ones are deduced, and the different machining occasions applying those jigs in condition of different demand o…
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