即使加上新式橙色“救生衣”——固定在顶部使其漂浮(如图片所示)，你也几乎感觉不到重量。
Even with its new orange "life jacket" that hooks around the top to keep it afloat (see photo), the device feels weightless.
重力球形止回阀可以变为通风阀，只需用漂浮球体更换标准球体，然后在安装时将阀门倒置，使其阀座向上即可。
Gravity ball check valves are converted to vent valves by replacing the standard ball with a floater ball and inverting the valve at installation-with seat up.
大多数落水事故中，汽车在其自身的重力使其下沉之前会漂浮一段时间。
In most water crashes, a vehicle will float for a period of time before the weight of the engine pulls the vehicle under.
应用推荐