... top level die-filling 上面装模 High-level filling mass 高阶段充填体 the level of soil filling 填土标高 ...
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高阶段充填体力学研究表明：缩短采场长度和增大采场宽度有利于充填体稳定性和降低充填成本。
The mechanical researches showed that reducing length or increasing width of stope were propitious to improve stability of backfill and to lower filling cost.
用本文方法对安庆铜矿3号高阶段采场充填体进行了可靠性分析，并评价了充填设计的可行性。
Using the present method, the reliable indexes of backfill in stope No. 3 in Anqing copper mine, Anhui province, were calculated, and the feasibility of filling design were evaluated.
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