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The coal dry distillation product is the coal, the coal - tar oil and the coal gas.
煤干馏的产物是煤炭 、 煤焦油和煤气.
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Along with the dry distillation end temperature difference, the coal dry distillation product is also different.
随着干馏终温的不同, 煤干馏产品也不同.
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