强制放顶处理厚层难冒顶板实践

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强制放顶处理厚层难冒顶板实践的英文翻译

基本释义

To deal with the thick roof difficult to cave by coercive measures

强制放顶处理厚层难冒顶板实践的相关资料：

临近单词

强强生

目录

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