为了避免这种危害，通常采取的办法除了减小气门重叠角外，就是在进气管安装防爆装置。
Conventional measure to avoid the damage is to install explosion proof equipment in intake pipe besides decreasing valve overlap Angle.
盛奶瓶外设置有一个打气筒，其气管通过气门嘴与盛奶瓶中的气囊相连通。
The exterior of the milk loading bottle is provided with an inflating pump. An air pipe of the inflating pump is communicated with the air bag of the milk loading bottle through an air valve.
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