low coal seam [矿业] 薄煤层 ; 夹有薄煤层
low coal 薄煤层
low ash coal 低灰分煤
low grade coal 劣质煤 ; 低品位煤
low coal bed 低煤层
low-coal seam 薄煤层
gently inclined low coal seam 缓倾斜薄煤层
low rank coal 低煤阶煤 ; 低煤化度煤 ; 低阶煤 ; 低煤级煤
The low-coal seam synthesis mechanized mining of Shenhuo Xinzhuang mine is mostly to solve the height and power problem of mining equipment.
神火新庄矿薄煤层综合机械化采煤，主要是解决采煤设备的高度和功率问题。
Unfortunately, the current low prices for oil, gas, and coal may provide little incentive for research to find even cheaper substitutes for those fuels.
不幸的是，目前石油、天然气和煤炭的低价格可能无法激励研究人员去寻找更便宜的那些燃料的替代品。
Coal prices also are low, owing to oversupply and the scaling-down of demand, especially from China, which bums half of the world's coal.
煤炭价格也很低，原因是供应过剩和需求下降，尤其是来自中国的需求，中国消耗了全球一半的煤炭。
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