The test work indicated the probability of a pre-concentration stage using a screening, dense media separation or coarse-ore jigging after crushing and screening.
这个试验工作表明可以通过在进行粉碎和过滤之后对矿石进行再过滤，重阶选矿或者初步汰选的这样一种预浓缩阶段的实现可能性。
The traditional dry ethylene process, calcium carbide broken generally adopt two-stage jaw broken way to finish the crushing grain size, calcium carbide is larger.
传统的干法乙烯工艺中，电石的破碎一般采用两级颚破的方式完成，电石的破碎粒度比较大。
In this paper the principle of the inclusion crushing method and its geological implication are introduced and also a diagrammatic description of the crushing stage is presented.
本文介绍了压碎法的工作原理、方法、主要地质意义以及压碎台的制作。
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