IP测量的目的在于寻找正在开采的矿脉的延伸。
IP surveys aimed at finding the extent of a vein being mined.
其研究结果对缓倾斜极薄矿脉的开采具有重要意义。
The research is of great reference significance to the mining of the gently inclined and thin ore vein.
他们快要挖到金矿脉的尽头了，然而那儿却没有金块。
They had come to the end of the rainbow, and the pot of gold was no longer there.
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