breaking of coal

基本解釋

During the entire process of breaking large coal cinder, the various working procedure meet safety and usefulness.
在破碎大煤塊的整個(gè)過程中，各個(gè)工序滿足安全性和實(shí)用性的統(tǒng)一。
Dealing with the practice of Jincheng Mining Bureau, the effect of breaking large coal on the washing technique and benefit is discussed, some helpful opinions are suggested.
結(jié)合晉城礦務(wù)局實(shí)際，論述了選前大塊原煤的破碎對(duì)洗選工藝及效益的影響，并對(duì)破碎作業(yè)提出了一些建設(shè)性意見。
By means of some parameters that reflect breaking strength of coal body structure, changing features of coal body structure at No. 3 coal bed of No. 1 mine in Shizuishan Mine Area are studied.
采用反映煤體結(jié)構(gòu)破壞程度的若干宏觀與測(cè)試參數(shù)，研究了石嘴山一礦井田主采三層煤的煤體結(jié)構(gòu)變化特征。