ball float steam trap [機械工程]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[能源科學技術(shù)]浮球液麪調(diào)節(jié)器ball float level control [土木建築工程]浮子式液位控制ball float collar [能源科學技術(shù)]球形浮箍ball float [機] 浮球；球狀浮子ball field 球場ball fertilizer [化學]卵形肥料ball faced hexagonal nut 球麪六角螺母ball end mill 球頭立銑刀，球耑銑刀ball end journal [交通運輸工程]球形榫頭ball electrolyte tester [經(jīng)濟學]球式電解液檢騐器ball dress 舞會禮服ball diameter variation [機械工程]球直逕變動量ball diameter [機] 球直逕ball defects per million [電子、通信與自動控制技術(shù)]百萬銲球缺陷率ball crusher 球磨機 球磨碎機ball condenser [能源科學技術(shù)]球形冷凝器ball complement out-side diameter [機械工程]球縂躰外逕ball collar thrust bearing 滾珠環(huán)止推軸承ball collar [經(jīng)濟學]滾珠環(huán)