pneumatic capstan气动: pneumatic主动轮: drive sprocket; action wheel ...录音磁带传动主动轮: recorder capstan主动轮: drive sprocket; action wheel; capstan; drive pulley; drive wheel◇主动轮轴 drive sprocket axle主动轮,策动轮: drivewheel下载手机词典可随时随地查词查翻译