在气体制造工业中，在制造和运输的任何阶段都可能发生不幸的事故，例如，在生产、气瓶充装和搬运、维修和销售阶段。
In the gases industry, accidents can and unfortunately do occur at all stages of manufacturing and handling ie production, cylinder filling and handling, maintenance and distribution.
当这些工厂企业使用普通搬运设备在可燃性的液体、气体或粉尘存在的环境下进行工业生产时，风险很大。
When the factories use normal handling equipments to work in an environment with existence of flammable liquid, gas or dust, they have high risks.
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