大口径金属管道把钟形导向短节与泥浆储罐连接起来。
The large-diameter metal pipe connects the bell nipple to the possum belly.
坑道内大口径、长延伸、低电阻率的金属管道，对测深资料的影响非常大。
The heavy caliber, long extension and lower resistivity impact on sounding data extremely.
坑道内大口径、长延伸、低电阻率的金属管道，对测深资料的影响非常大。
The heavy caliber, long extension and lower resistivity impact on sounding data extremely.
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