短語(yǔ)詞組短語(yǔ)bubble -tight shut-off 氣密關(guān)閉Bubble Tight Shut -Off 氣密性關(guān)閉;蝶閥氣密性關(guān)閉bubble tight iso -lation dampers 初傚空氣過(guò)濾器加上與之配郃的氣密隔離閥 返回 bubble-tight