bituminous coal沥清煤,烟煤详细»
bituminous coal沥青煤,烟煤详细»
bituminous coal〔名词〕沥青煤,烟煤详细»
bituminous coal〔名词〕烟煤,肥煤详细»
烟煤bitumen lepideum;bituminite;bituminous coal;carbo lapideus;hartleyite;lithanthrax;metallophyton;pechkohle;ring coal;sea coal详细»
烟煤bitumenite;bituminous coal;bitumite;black coal;boghead;boghead coal;bright coal;gascoal;soft coal;splinter coal;splintercoal详细»
烟煤〔名词〕bituminous coal,bituminous-coal详细»
烟煤bitumastic coal bituminite bituminous coal bitumite black coal pitch coal soft coal splinter-详细»