经检验测试，其安全效益和经济效益显著，在煤矿设备技术性能更新改造中有巨大的推广应用价值。
Through testing and checking, it is necessary to promote and apply to technical characteristics update and reform of mine equipments, while yielding good safety returns and economic returns.
经检验测试，其安全效益和经济效益显著，在煤矿设备技术性能更新改造中有巨大的推广应用价值。
Through testing and checking, it is necessary to promote and apply to technical characteristics update and reform of mine equipments, while yielding good safety returns and economic returns.
应用推荐