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。

youdao

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。

youdao