词语medium-volatile bituminous coal
解释中等挥发分烟煤
词性名词
medium-volatile bituminous coal〔名词〕中等挥发分烟煤详细»
中等挥发分烟煤medium-volatile bituminous coal详细»
中等挥发分烟煤medium-volatile bituminous coal;medium-volatile coal详细»