... 终孔直径 End hole caliber 钻杆直径 Drill pipe diameter 钻孔倾角 Drilling angle ...
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drill pipe diameter
钻杆直径
以上为机器翻译结果,长、整句建议使用 人工翻译 。
Therefore area array CCD is adopted for the non-contact measurement of the diameter of the abrading section of the drill pipe.
鉴于此,采用面阵CCD对钻杆受磨损部位的直径进行非接触式测量。
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Inside the riser pipe is a space about half a meter in diameter, large enough to hold the spinning drill pipe and bit and to allow the return flow of drilling fluid.
FORBES: The delicate art of sucking up
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