pneumatic tube system气动: pneumatic管道输送: pipage; pipeage系统: system闭式管道输送系统: closed pipeline system气力管道输送系统: pneumatic pipe conveying system下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:气动管道输送系统,即可在微信中查询翻译