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	speech parameter specification speech path speech path controller speech path impulse generator speech path network speech pathologist speech pathology Speech pathology procedure speech-path switching element speech path system speech pattern speech pattern matching speech patterns speech perception speech perception approach speech perceptions speech perception test speech perception threshold speech phonation Speech plus. speech plus duplex FMFV telegraph equipment speech plus half-duplex circuit speech plus simplex speech-plus-tone service speech plus voice frequency telegraph

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