Bolting manual pillar and room method is a good future method of mining Mn ore body of medium thickness and small pitch.
人工柱锚杆房柱法是一种有前途的开采中厚缓倾斜锰矿床的采矿方法。
2
A deal between the companies could pitch China, a large importer of the fertilizer potash, into a new battle with BHP following earlier conflicts over iron-ore pricing.
甲公司之间的交易可能音高与必成中国新的战斗，一个大的化肥进口钾肥后，对铁矿石定价同期冲突。
3
Controlled by structure trap, ore body located in the core of the brachyanticline or pitch part of plunging anticline which was intersected by high angle longitudinal fault.