短語詞組短語assistor pocket 加力袋Flow assistor 助流器brake assistor [航]制動(dòng)加力器;制動(dòng)增力裝置mechanical assistor 機(jī)械輔助器pumping assistor 助抽增液器vaccum assistor 真空助力器judicial assistor 司法補(bǔ)佐官gas assistor 助退器 返回 assistor