floating-roof tank
/ˈfləʊtɪŋ ˈɹɪb ˈtuː/
n
English · floating-roof tank中文 · 浮顶储罐Español · tanque de techo pontónFrançais · réservoir à toit flottant
意味：Tank whose floating roof rests directly on the surface of the liquid to minimize the evaporation of hydrocarbons; it is used to store the most volatile products.