By employing the VCR mining method, the experiment of blasting funnel must be carried out on the spot in order to ensure the parameters in mining by globular dynamite charge.
使用VCR采矿法进行采矿时，必须就地进行爆破漏斗实验，以确定利用球状药包落矿时的爆破参数。
By employing the VCR mining method, the experiment of blasting funnel must be carried out on the spot in order to ensure the parameters in mining by globular dynamite charge.
使用VCR采矿法进行采矿时，必须就地进行爆破漏斗实验，以确定利用球状药包落矿时的爆破参数。
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