Because the rate of lump coal influence the price directly, so coal enterprises hope to have a method to control the rate of lump coal and increase the economy profit.
原煤的大小块率直接影响原煤的价格，所以煤炭生产企业迫切希望能够有效控制采出煤的块率，以提高企业的经济效益。
It is a kind of feasible research means for studying blasting parameter optimization for increasing lump coal rate.
从而为提高煤块率的参数优化提供了了一种切实可行的研究方法。
It is a kind of feasible research means for optimization of blasting parameters for increasing lump coal rate.
从而为提高煤块率的参数优化提供了一种切实可行的研究方法。
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