1. The modification of the asphalt with anthracitic coal and coke were studied in this paper.
采用无烟煤和焦炭对国产普通沥青进行了改性研究。
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2. It is the focus problem for anthracitic coal production enterprise to increase percentage of lump coal and reduce amount of lump coal with size smaller than lower size limit.
提高块煤率、降低块煤限下率是当前无烟煤生产企业关注的焦点问题。
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3. It is the focus problem for anthracitic coal production enterprise to increase percentage of lump coal and reduce amount of lump coal with size smaller than lower size limit.
