In order to realize safety production in coal mine, ventilation system must be set up.
为了实现煤矿安全生产，各矿必须建立稳定的矿井通风系统。
It is of practical significance in coal mine safe production.
这对提高煤矿安全生产具有重要的现实意义。
Bump is a dangerous hazard in coal mine production all over the world.
冲击地压是世界范围内煤矿生产中最严重的自然灾害之一。
The main points of management of safety in production in coal mine were introduced.
本文介绍朔里煤矿抓安全生产管理几点做法。
So it plays an important role in safety production of coal mine.
因此，它在煤矿安全生产中起着重要的作用。
So it plays an important role in safety production of coal mine.
因此，它在煤矿安全生产中起着重要的作用。
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