ball float cock浮球旋塞
ball-cock device[建] 球阀装置
ball-cock assembly浮球阀;浮球阀装置
ball cock tap浮球阀
gas union ball cock煤气活接头球形旋塞
ball cock assemblies浮球阀装置
ball cock washer球阀垫片
ball type angle cock球芯折角塞门
ball cock device浮子装置
N（名词） a device for regulating the flow of a liquid into a tank, cistern, etc, consisting of a floating ball mounted at one end of an arm and a valve on the other end that opens and closes as the ball falls and rises with the water level in the cistern 浮球阀