roof fall
冒顶
常用释义
英式发音
美式发音
基本释义
- 塌顶
例句
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1·My partner says no because the boiler could go, or the roof fall off, and we have no savings to save us.我的另一半说不，因为锅炉可能会坏掉，屋顶可能会掉下来，而我们没有可用以自救的储蓄。
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2·Roof fall in mines is one of the severe disasters in mining operation.矿山冒顶是矿山生产过程中严重灾害之一。
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3·No rules is no game. 14: We must try to prevent the roof fall down I wanted to know what it meant to be a star.没有规则就没有游戏。十四：我们必需设法避免房顶塌上去我曾想知道当一个明星意味着什么。
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4·Defend is difficult since its stability is bad, often bring face roof fall, the roof management is very difficult.由于其稳定性差、维护困难，经常造成工作面顶板冒落，给顶板管理带来了很大困难。
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5·Defend is difficult since its stability is bad. It often brings face to roof fall. The roof management is very difficult.由于其稳定性差、维护困难，经常造成工作面顶板冒落，给顶板管理带来了很大困难。
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6·The II3123 face is a light type caving face of three-soft coal seam. the roof is cracked, sloughing and roof fall often occur.前言： 石台煤矿II3123工作面为“三软”煤层轻放工作面，顶板破碎易掉，片帮、冒顶时常发生。
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7·The sound emission characteristics and the causes for incorrect prediction of the stope roof fall at Tonglushan Mine were analysed.对铜绿山矿采场冒顶的声发射特征和预报不准的原因进行了分析。
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8·The compound roof fall accident of the individual hydraulic prop face is analyzed. The accident mechanization and prevention method are pointed.对单体支柱工作面复合型顶板推垮型事故进行了分析，提出了事故发生的机理和预防办法。
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9·Analysing the roof-fall cause of end face and support system, an effective way to reduce roof fall sensitivity and improving production efficiency are pointed out.通过对工作面端面冒顶原因及支护系统的分析得出，加大液压支架的流量可以加快移架速度，降低冒顶事故率，提高生产效率。
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10·Roof fall accident is one kind of dangerous accidents happened at underground mines and underground pressure management is the main task of mining safety management.冒顶片帮事故是地下矿山危害最为严重的事故，矿山地压管理是地下开采矿山安全管理的重要任务。