| 单词 | 矿坑 |
| 释义 | 〔firedamp〕A combustible gas, chiefly methane, occurring naturally in mines from the decomposition of coal.沼气：一种在矿坑里由煤腐烂而自然产生的可燃气体，主要成分是甲烷〔working〕Often workings The parts of a mine or quarry that have been or are being excavated. 常作 workings 矿坑：矿井或采石场已经被或正在被挖掘的部分〔pocket〕A small body or accumulation of ore.矿坑：小矿体或矿石的堆积〔bonanza〕A rich mine, vein, or pocket of ore.富矿脉：富矿坑、脉、囊 |
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