變率可變比例可變比值variable: adj. 1.易變的,變化無常的,無定的 (opp. c ...ratio: n. (pl. ratios) 1.比,比率,比值;比例 ...ratio variable: 比率變量variable-ratio: 可變比continuously variable ratio transmission: 無級調(diào)速變速器下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯