The reverse side of the mirror should be in continuous contact with air without needing ventilation .
反射镜的背面应经常与空气接触但无需通风。
The reverse side of the mirror should be in continuous contact with air without needing ventilation.
反射镜的背面应经常与空气接触但无需通风。
Test research of discarding coarse tailings in new technological flowsheet consisting of two stage continuous grinding-gravity separation-magnetic separation-reverse flotation is described.
介绍了东鞍山矿石两段连续磨矿、重选-磁选-反浮选新工艺流程中粗粒部分抛尾试验研究。
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