Gas inspection system that uses modern information technology and network technology, supervises gas detection officers to checkinspection line and each polling place.
煤矿事故的发生，绝大多数是由于人的不安全因素所致，如管理措施不力，人员监督检查不到位。
2
The first check should be done at or before that point, while the second should be done at regular inspection channels.
第一次检查应该在这个地方或之前完成，而第二次检查将通过常规检查渠道完成。
3
Inspection: When your new equipment does arrive, check it and test it.