“roof fall”的概念、定义、翻译、参考文献-科学参考

单词	roof fall
释义	roof fall Encyclopedia 工学岩石地下工程灾害释 roof fall冒顶矿井、隧道（洞）开挖时，采掘作业面或巷道的顶板在矿山压力作用下变形、破坏而脱落，造成顶部大面积垮塌的现象。
随便看	assumed mean assumed median assumed mode method assumed profile assumption assumption-based planning assumption formula assumption of enforcement consult assumption of plane cross-section assumption of risk Assumption of the Virgin assurance level assurance of paternity assurance services ASSURE model ASSURE模式 assuring rate of depth datum Assyria Assyrian Relief Assyrians Assyriology AST AST3 A stability A-stability

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