- excavate coal; coal mining; coal extraction; coal cutting 短语和例子
从矿层中采煤 extract coal from seams
- 采煤场: coal face; colliery
- 采煤道: stall 1
- 采煤镐: coal pick
- 采煤工: brusher; coal digger; coal getter; coal hewer; coal miner; cutter; hewer
- 采煤机: coal cutter; coal mining machine; coal winning machine; coal-winning machine; coalcutter; getter; winning machine
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