The technical measures and structure,applied principles of blastproof of ventilation shaft at excavating face,specific operational method and prospective effect are described.
介绍了掘进工作面防炮崩筒的主要技术措施及技术结构、应用理、采用这项技术的具体操作方法及达到的预期效果。
The technical measures and structure,applied principles of blastproof of ventilation shaft at excavating face,specific operational method and prospective effect are described.
介绍了掘进工作面防炮崩筒的主要技术措施及技术结构、应用理、采用这项技术的具体操作方法及达到的预期效果。
声明:以上例句、词性类均由互联网资源自动生,未经过人工审核,其表达内容亦不代表本软件的观点;若发现问题,欢迎向我们指正。