ball float steam trap [機(jī)械工程]浮球式疏水閥ball float level controller [電子、通信與自動控制技術(shù)]浮球式液位控制器浮子式液位控制器[能源科學(xué)技術(shù)]浮球液面調(diào)節(jié)器ball float level control [土木建筑工程]浮子式液位控制ball float collar [能源科學(xué)技術(shù)]球形浮箍ball float [機(jī)] 浮球；球狀浮子ball field 球場ball fertilizer [化學(xué)]卵形肥料ball faced hexagonal nut 球面六角螺母ball end mill 球頭立銑刀，球端銑刀ball end journal [交通運輸工程]球形榫頭ball electrolyte tester [經(jīng)濟(jì)學(xué)]球式電解液檢驗器ball dress 舞會禮服ball diameter variation [機(jī)械工程]球直徑變動量ball diameter [機(jī)] 球直徑ball defects per million [電子、通信與自動控制技術(shù)]百萬焊球缺陷率ball crusher 球磨機(jī) 球磨碎機(jī)ball condenser [能源科學(xué)技術(shù)]球形冷凝器ball complement out-side diameter [機(jī)械工程]球總體外徑ball collar thrust bearing 滾珠環(huán)止推軸承ball collar [經(jīng)濟(jì)學(xué)]滾珠環(huán)