英语词汇“positive negative pressure ventilator”的翻译、意思、用法、释义-英汉汉英双解词典

单词	positive negative pressure ventilator
释义	positive negative pressure ventilator 医正负压呼吸器
随便看	rotary falling film rotary fan rotary fan conveyer rotary fans rotary fan suction cleaner rotary fault rotary feed rotary feed control rotary feeder rotary feeding plate rotary feed reservoir rotary feed table rotary-ferrograph rotary fertilizer distributor rotary fettling table rotary fibre disk filtration rotary field rotary-field electromagnetic method rotary-field impedance relay rotary field moter rotary field motor rotary file rotary file assortment set rotary filing machine rotary filler