rescue buoy
救生浮标 （ rescue buoy ）和浮标绳 用硬质泡沫塑料或铝镁合金制成的球体（合金型为中空），表面也有红白相间的花纹，其下连接有浮标绳。
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救生浮标（messenger buoy）,军事,揭秘,兵器...
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救生浮标信号 lifesignal
救生圈救生浮标 lifebuoy
救生浮标绳索 ascending line
救生浮具标记 marking of buoyant apparatus
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他告诉大家要使用天花板上垂下的救生索，那是一条穿有木质球果的绳子，类似游泳池内的浮标。
He said to use the lifeline running along the ceiling, a slender rope threaded through wooden cones, like floats in a swimming pool.
youdao
游泳区域用浮标标出来了，救生艇在区域内巡逻。
Swimming areas are marked off by buoys, and lifeboats patrol the area.
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