Exploration programmes are based on drilling for the stratiform deposits along projections of established trends.

勘探计划依靠钻探，钻探层状矿床沿着已知走向的延伸部分进行。

youdao

Exploration programmes are based on drilling for the stratiform deposits along projections of established trends.

勘探计划依靠钻探，钻探层状矿床沿着已知走向的延伸部分进行。

youdao