75069 returned light engine.
75069次列车单机返回。
75069 returned light engine.
75069次列车单机返回。
Based on single machine check test,small screening test,combustible withdraw rate calculation and flotator complete index calculation,prove that the flotation result is very well.
通浮选机的单机检查试验、小筛分试验、可燃体抽出率的计算、浮选机完善标的计算,证明浮选机的浮选效果良好。
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