求翻译：向下拉红色的充气把手救生衣就会被充气，当需要时可用嘴吹救生衣上的胶皮管，从而达到充气的目的，同样的可以按胶皮管上的弹簧释放救生衣内的多余压力。是什么意思？

Down the red handle inflatable lifejacket will be inflated, mouth to blow the hoses on the life jackets when needed, so as to achieve the purpose of the inflatable, the same spring to release the excess pressure inside the life jacket on the hoses.

Pull down on the gas-filled red handle life jackets will be inflated, when available when you need life jackets mouth to blow on the rubber tube, inflate to reach the end, the same as the rubber tube spring release life jackets in the excess pressure.

Pulls the red gasification to be able downward to gasify the hand life jacket, when needs the available mouth blows on the life jacket the rubber tube or hose, thus achieves the gasification the goal, same may according to in the rubber tube or hose on spring release life jacket unnecessary pressure

Pull down the red handle inflatable life jackets are aerated, mouth blown on a life jacket when you need the hose, so as to achieve the aim of air, similarly you can spring on the hose to release excess pressure inside the life jacket.

正在翻译，请等待...