This seems to come down to “national planning”, and renegotiating or cancelling foreign companies' contracts to run ports and operate mines and gasfields.
这似乎会归结为“国家计划”，重新谈判或者撤销与外国公司签署的经营港口、矿井、气田的合同。
Drillers in this unit group operate mobile drilling machines to bore blast holes in open-pit mines and quarries and to bore holes for blasting and for building foundations at construction sites.
该项中的钻探工人操作移动钻孔机实施露天矿和采石场的钻孔爆破以及建筑工地的建筑物基础设施的爆破工作。
Chinese mines already are expensive to operate relative to major mines abroad because their deposits tend to be small and hard to reach. Mr.
因中国金矿往往规模较小且不易开采，相比国外的主要矿藏，中国黄金开采成本相对较高。
Chinese mines already are expensive to operate relative to major mines abroad because their deposits tend to be small and hard to reach. Mr.
因中国金矿往往规模较小且不易开采，相比国外的主要矿藏，中国黄金开采成本相对较高。
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