personal flotation device 项链救生圈
Pressurized dissolved air flotation device 加压溶气气浮装置
air flotation device 气浮装置
emergency flotation device 应急漂浮装置
individual flotation device 单人飘浮装置
centrifugal flotation device 离心浮选
Column gas flotation device 塔式气浮装置
同义词： life preserver preserver
以上来源于: WordNet
Your seat cushion can be used as a flotation device.
你的椅垫可以拿来当作浮具使用。
In case of a water landing, you may be used as a flotation device.
当水上登陆的时候，你也许应该使用漂浮设备。
They'd assigned me a "swim angel" with a flotation device in case I had trouble, but I left her behind.
他们给我分配了一个“游泳天使”，准备了救生设备以防我遇到麻烦，但我把她甩在了身后。
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