For iron ore, the yield of coarse fraction was obviously reduced after irradiation.
铁矿石则表现为辐照后粗粒级产率明显降低。
Tailings grading, coarse fraction regrinding and reconcentration, fine fraction reconcentration technique is determined.
经过试验研究，确定了对尾矿分级粗粒级进行再磨再选、细粒级再选综合回收工艺。
The compression property test method of coarse fraction hand sorting waste rock, smelter slag and their mixed filling materials had been introduced in this paper.
本文主要介绍粗粒级手选废石、冶炼炉渣及二者按不同比例混合料的压缩性能测定方法。
Moreover, straightness of tens of microms can be measured and an accuracy of a fraction of a micron is readily given by coarse grating.
用它可测数十米物体的直线度，使用粗光栅即可容易地达到微米以下的精度。
Moreover, straightness of tens of microms can be measured and an accuracy of a fraction of a micron is readily given by coarse grating.
用它可测数十米物体的直线度，使用粗光栅即可容易地达到微米以下的精度。
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