煤矿救生舱是否有国家标准国家规定,煤矿必须按照规定要求建设煤矿井下紧急避险系统,其中一项内容是“可移动式救生舱”.请问目前是否有煤矿救生舱的国家标准或行业标准?

来源:学生作业帮助网 编辑:作业帮 时间:2024/10/02 01:39:23
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