近期建造的浮顶在其外围有一系列浮舱或封闭的隔舱，以增加浮动的稳定性并简化其结构。
In a later development, the floating roof was built with a series of "pontoons, " or closed compartments, around its outer edge to increase floating stability and to simplify the structure.
浮圈是用来当浮标，指示降落海上的太空舱。
Flotation collars are used to buoy space capsules that land in the SEA.
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