对采用窒息法灭火时判定燃烧熄灭和安全启封时机具有一定的指导意义。
It has certain guiding meaning on judging the right moment of the suppression of combustion and the safe opening of the tunnel when stifling method is used.
一种以阻断氧气，破坏自然对流，使火焰在自身产生的二氧化碳气体中窒息的方式灭火的人力灭火机。
The utility model discloses a manual fire extinguisher in the manner of oxygen-insulating to break natural convection, which extinguishes the fire by the carbon dioxide generated by the fire itself.
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