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兰炭
释义
兰炭
Encyclopedia
工学
焦炭
释
semi coke
兰炭
低阶烟煤、褐煤或泥煤等在干馏炉内经低温(500~750℃)干馏得到的固体产物。又称半焦。因燃烧时有蓝色火焰而得名。通常,半焦还是煤转化为液体和气体燃料过程中的副产品或中间产物。
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direct proof
direct proportion
direct proportionality
direct proton decay
direct radiation grafting (simultaneous radiation grafting)
direct ratio
direct reaction
direct reaction model
direct recombination
Direct Recording of Infantile Tuina
direct-reduction iron
direct-reduction ironmaking
direct reduction reaction in blast furnace
direct reeling
direct refutation
direct regulating method
direct reporting network
Direct Response Marketing/ Direct Marketing
Direct-Response Television Marketing
directrix
directrix of a conic
directrix of a conical surface
directrix of a cylindrical surface
direct rule of inference
direct rule of three
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