常見例句雙語例句This paper deals with an analysis of parameters in regard to rational extent of working area for underground hydraulic coal mining.本文是分析地下水采方法的經(jīng)濟(jì)合理采垛參數(shù)。This paper introduces an experiment of making industrial briquette with taking HFX-1 compound binder and hydraulic mining coal slurry.本文以水采煤泥為主要原料，采用HFX— 1型復(fù)合黏結(jié)劑制取工業(yè)型煤。Hydraulic coal mining offers the merits of being simple in process, high in adaptability, less in labor intensity and easy in management.水力采煤具有工序簡單、適應(yīng)性強(qiáng)、勞動(dòng)強(qiáng)度小、便于管理等優(yōu)點(diǎn)。 返回 hydraulic coal mining