[目的]探讨煤田地质因素与煤矿尘肺发病关系。
Objective the aim of this study was to explore the relationship between coalfield geology factors and incidence of pneumoconiosis.
适用于无沼气或矿尘爆炸危险的爆破工程和露天爆破工程。
Suitable for outdoor blasting and mine blasting projects without marsh gas and mineral dust explosion risk.
广泛适用于露天及可燃气和(或)矿尘爆炸危险的地下爆破工程。
Widely used in outdoor blasting and underground blasting projects with combustible gas and mineral dust explosion risk.
为此，加强防尘措施，降低环境矿尘浓度，可能对减少该矿肺癌发病具有重要意义。
Therefore, further measures for individual prevention and reduction of mine dust concentration in the air were considered to be necessary for reducing the incidence of lung cancer.
目的了解新建大型煤矿作业场所粉尘危害状况，为今后开展煤矿尘肺防治工作提供依据。
Objective To understand the status of dust hazard in the new large coal mines and provide the basis for the prevention of pneumoconiosis.
在防尘措施、接尘工龄基本相同的情况下，造成煤矿尘肺发病差异的原因主要是煤田地质因素不同。
With the similar dust control measures and length of exposure to dust, the main reason of causing different coal mine incidence of pneumoconiosis was the different coalfield geology factors.
矿井中到处充斥着损害人体健康的矿尘及像一氧化碳、氡等有毒气体，这些都会通过呼吸由肺部进入人体。
Mines are notorious fordust and toxic gases such as carbon monoxide and radon, which can enterthe body via the lungs.
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。
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。
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.
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