Within the ore pass, rock & ore cause different frictional forces that can be divided into 3 type of static pressure and stress.
根据矿岩在溜井内产生摩擦阻力的不同，矿岩对溜井底部静压力可分为3种状态。
Within the ore pass, rock & ore cause different frictional forces that can be divided into 3 type of static pressure and stress.
根据矿岩在溜井内产生摩擦阻力的不同，矿岩对溜井底部静压力可分为3种状态。
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