Inside equipments we may have a source of ignition for example a running agitator with a mechanical failure.

高压反应釜但是设备内部也许会有火源的存在，例如，搅拌器搅拌时出现机械故障。

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Of course the presence of humans themselves also changes the odds of fire, as people are a frequent source of ignition—both accidental and deliberate.

当然，人类自身的存在也改变火灾的可能性，因为人类是一个经常地导火源——有无意的也有故意的。

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Personnel should stay in a well-ventilated area and avoid any source of ignition until their clothing is completely free of any excess oxygen.

人员应一直呆在通风良好的区域，避开任何火源，直到他们的衣物彻底没有任何多余的氧为止。

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