众所周知，井下作业人员工作服多以纯棉细帆布为主。
As everyone knows, underground work personnel's work clothes take cotton thin canvas as the core more.
目的了解我省煤矿井下采掘作业地点气象条件现状，为井下作业人员职业防护提供依据。
Objective To understand the status of environmental meteorology in underground workplace of coal mine in our province.
然而，避难硐室或救生舱就是这样一个在煤矿发生事故时为无法及时撤离的井下作业人员提供一个躲避灾难、赢得救援时间的安全的密闭空间。
However, refuge chamber or rescue capsule is a closed space, it for the underground work who cannot evacuate provide a avoid disaster in time and win the rescue time when coal mine accident.
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