英语词汇“fractured roof, friable roof”的意思、用法、释义、翻译、读音、例句、短语、词组-英汉翻译词典

单词	fractured roof, friable roof
释义	fractured roof, friable roof 破碎顶板; 岩层节理裂隙十分发育、整体强度差、自稳能力低的顶板。
随便看	spiral slide fastener made of wire spiral spiral slit spiral slot spiral slot antenna spiral slotted oil control ring spiral sluice spiral socks spiral source of dislocation spiral spectrometer spiral / spiral point spiral spline broach spiral spring spiral-spring spiral-spring actuated door hinge spiral-spring actuated door hinge, torsion-spring actuated door hinge spiral-spring balance spiral spring balance spiral spring (flat spiral spring) spiral spring, leaf spring spiral springs spiral spring suspension spiral spur gear spiral stability spiral stabilization spiral stabilizer

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