真空輔助煞車vacuum: n. (pl. vacuums, vac-ua ) 1. ...break: vt. (broke, 〔古語〕 brake; brok ...vacuum break: 真空輔助煞車; 真空破除器pvbrk primary vacuum break: 基本真空中斷vacuum break mode: 阻風(fēng)門切斷狀態(tài)下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯