- 相关词组
- roof coal留顶板煤
- regular coal seam稳定煤层
- separation coal洗选煤;精选煤
- raw coal原煤
- mixed coal混煤
- semibituminous coal半褐煤;半沥青煤;半烟煤
- sea coaln.海运煤
- sedimentary pyrite deposit in coal series煤系沉积硫铁矿床
- semidull coal半暗煤
- regularity of coal seam煤层稳定性
- secondary coal recovery煤二次开采
- mixed slack coal混末煤
- semibright coal半亮煤
- raw coal inlet原煤进口
- sedimantary model of coal煤沉积模式
- semisplint coal半暗硬煤
- regional mag-matic-heat metamorphism of coal煤区域岩浆热变质
- sampling plan of coal seam煤层取样平面图
- sedimentary model of coal煤沉积模式
- sample for commercial coal商品煤样
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- graduate n.大学毕业生;毕业生;v.获得学位;授予学位文凭;中学毕业;晋升;
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- Dua Lipa [人名]杜阿·利帕
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- drill n.钻头;练习;演戏;训练;常规;粗斜纹布;条播沟;v.钻孔,钻探;培训;操练;
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- stick-up n.持枪抢劫;