1. relating to or resembling anthracite coal. 
   无烟煤的或似无烟煤的。
2. Waste from anthracite coal mines, consisting of fine coal, coal dust, and dirt. 
   无烟煤废渣无烟煤煤矿的废弃物，由细粒无烟煤、煤尘和尘土构成
3. Part yellow, part green. 
   半黄半绿
4. A partial sabbatical from work 
   半脱产
5. A dense, shiny coal that has a high carbon content and little volatile matter and burns with a clean flame. 
   无烟煤一种很亮的高密度煤，含炭量高，挥发性物质少，燃料时火焰纯净

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• 1. semianthracite
  semi-water gas 半水煤气...semianthracite 半无烟煤...semibasement 半地下室
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• 2. carbonaceous coal
  carbonaceous || 碳的，碳质的，含碳的...carbonaceous coal || 半无烟煤，高碳煤...carbonaceous material || ①含碳物质，碳素物②碳素材料
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• 3. semi-anthracite
  semi-acid refractory 半酸性耐火材料...semi-anthracite 半无烟煤...semi-armour piercing incendiary 半穿甲燃烧弹
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• 4. carbonaceouscoal
  carbontubefurnace碳管炉...carbonaceouscoal半无烟煤...carbonate碳酸盐
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