That is why water has always been the main weapon against fire.
这就是为什么总把水作为重要的灭火武器。
Repair lower voltage equipments and power transmission includes tank farm pumps, main workshop and fire fighting water pump. Regular test motor and distribution cabinet insulation.
维修低压设备和给低压设备停送电,包括罐区的泵、主车间泵和消防泵泵。定期测试电机和配电柜的绝缘。
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。
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