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煤焦化
释义
煤焦化
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工学
煤的焦化
释
coal coking
煤焦化
原料煤在焦炉中隔绝空气条件下加热,生产焦炭、干馏煤气、煤焦油及其他多种化工产品的技术。是冶金工业高炉炼铁、机械铸造、铁合金等行业最主要的配套产业。副产的干馏煤气可生产甲醇、合成氨等化工产品,煤焦油可以生产用途广泛的高附加值化工产品。
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stone relief at Dabaodang
stone relief engravings at Mahaoya tomb No.1
stone reliefs in the Eastern Han tomb at Baizhuang, Shandong
stone reliefs in the Han tomb in Yinan County
stone reliefs in the Han tombs at Dabaodang, Shenmu
stone reliefs in the tomb of the Wife of Dayin Fengjun
stone reliefs in the tomb of Wang Deyuan
Stone Reliefs in Wu’s Memorial Hall
stone reliefs of the coffins of Han Dynasty
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