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。
In deep water, where your feet can't touch the bottom, simulate running with your flotation device worn as instructed.
按说明正确穿戴漂浮装备，然后，在你的双脚无法触底深水中，依托漂浮装备的浮力模仿跑步动作。
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 the unlikely event of an emergency water landing, you may find a flotation device beneath your seat cushion.
如果发生水上迫降的紧急状况，你可以在座位下方找到一套漂浮设备。
The simple unpowered flotation device solves the problems existing in the flotation column and is worth promoting and utilizing.
它解决了浮选柱存在的问题，值得推广利用。
The simple unpowered flotation device solves the problems existing in the flotation column and is worth promoting and utilizing.
它解决了浮选柱存在的问题，值得推广利用。
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