fuel tank head 燃油箱顶部

tank head block 罐端撑铁

head tank 压力槽 ; 高位槽 ; 落差贮水池 ; 压力柜

heavy tank head 大型封头

Head water tank 高位水箱

water head tank 高位水槽

constant level head tank 恒液位压头容器

purified brine head tank 精制盐水高位槽