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floating roof /ˈfləʊtɪŋ ˈɹɪb/ n

中文：浮顶

中文 · 浮顶Español · tapa flotanteFrançais · toit flottant
Meaning：Metal cover that rests on the surface of the stored liquid; it fluctuates with the level of the fluid and slides vertically inside the shell.
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Oil storage tank

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