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。
Anthracite lump coal is an important chemical raw material. Economic profit to anthracite coal producers mainly relies on the production and proportion of anthracite lump coal.
无烟块煤是重要的工业原料，无烟煤生产企业的效益主要体现在无烟块煤的产量和比例上。
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