英语词汇“Key coal seam”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	Key coal seam
释义	Key coal seam 基本例句关键层 Satisfying the sufficient mechanics condition for key stratum instability, a water inrush is likely to happen in the floor.当满足关键层失稳的充要力学条件时，承压水底板有可能发生失稳突水。
随便看	supply the gap supply the lack supply the missing words supply the money Supply the oxyhydrogen cutting machine Supply the padding for Bedding supply the place of supply the press with news supply the print with news Supply the room supply the wants of supply-ties supply time supply to supply to seal Supply to trip the relay supply train supply transfer panel supply transformator supply transformer supply transportation supply trays supply truck supply tube supply tunnel