The main insecure natural factors include: water, fire, gas, coal dust, wall collapse and so on. All of these are threatening the production safety of colliery enterprise.
其存在的主要不安全自然因素包括：水、火、瓦斯、矿尘、冒顶等，这些时时刻刻都在威胁着矿山企业的安全生产。
Outburst prevention technique of excavating in coal seam will be directly concerned colliery safety production and excavates taking over.
突出煤层煤巷掘进防突直接关系到煤矿的安全生产和采掘接替。
Strengthing the function of warning and safely is the guarantee of realizing the safety in production of the colliery to improve the safety management.
加强安全警示职能，提高安全管理是实现煤矿安全生产的保障。
Safety in production and prevention of occupational disease in colliery are consistent policies of the Chinese government.
加强安全警示职能，提高安全管理是实现煤矿安全生产的保障。
It is tightly related to network of information technology in colliery safety.
这与我国煤矿安全信息技术的网络化程度不高密切相关。
It is tightly related to network of information technology in colliery safety.
这与我国煤矿安全信息技术的网络化程度不高密切相关。
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