短語詞組短語ball float cock 浮球旋塞ball -cock assembly 浮球閥;浮球閥裝置ball cock tap 浮球閥gas union ball cock 煤氣活接頭球形旋塞ball cock assemblies 浮球閥裝置ball cock washer 球閥墊片ball type angle cock 球芯折角塞門ball cock device 浮子裝置 返回 ball cock