1. A soft, brownish-black coal in which the alteration of vegetable matter has proceeded further than in peat but not as far as in bituminous coal. 
   褐煤一种褐色软质煤，植物性物质的变化程度比泥煤重但比烟煤轻
2. Coal miners; coal seams; coal haulers. 
   煤矿工；煤层；运煤工
3. associated elements in coal 
   煤中伴生元素
4. Chemistry of Coal Utilization 
   《煤利用化学》
5. chemical processing of coal 
   煤化工

查看更多例句 相关情景会话

• 1. 烟煤
  软铸铁 soft cast iron...烟煤 soft coal...软钢 soft steet
  treasure.1x1y.com.cn - 相关搜索
• 2. 煙煤
  煙煤bituminous coal...煙煤soft coal...煙氣(有害的)fume
  www.weldr.net - 相关搜索
• 3. 双手被煤弄脏
  天然焦炭 smut one's hands with coal...双手被煤弄脏 soft coal...{n.}烟煤 sooty coal
  www.ifanyi.cn - 相关搜索
• 4. 軟煤；煙煤；劣質煙煤
  soft clay 軟粘土...soft coal 軟煤；煙煤；劣質煙煤...soft currency 軟貨幣
  161.207.1.13 - 相关搜索