manual extinguisher
常见例句
- 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.
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。
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