... drilling g tool 钻具 drillings s 钻粉 drillmobile % 钻车 ...
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同义词: boring
同义词: boring oil production
以上来源于: WordNet
The company said test drillings indicated the area contained some of the world's biggest deposits of potash, which is used mainly in fertilisers.
BBC: Consultation starts on North York Moors mine plan
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