短語詞組短語Pneumatic c loudspeaker 氣動揚(yáng)聲器electro pneumatic loudspeaker tester 萬能電氣試驗(yàn)儀electro pneumatic loudspeaker retinograph 網(wǎng)膜電圖記錄器electro pneumatic loudspeaker stylus 電描畫針electro pneumatic loudspeaker reversing gear 電磁回動裝置electro pneumatic loudspeaker pneumatic valve 電動氣動控制閥 返回 pneumatic loudspeaker