短語詞組短語reduction n gearbox 減速箱single -reduction gearbox 一級減速器double -reduction gearbox 雙級減速齒輪箱;兩級減速器hl reduction gearbox hl150 型減速箱reverse reduction gearbox 倒順車減速齒輪箱axle reduction gearbox 車軸減速齒輪箱intermediate reduction gearbox 中間減速器Matched reduction gearbox 適配減速齒輪箱 返回 reduction gearbox