【运输】荷载和地面之间的气垫【生活】荷载和地面之间的气垫

air humidifier

air cooling

primary-air supply aperture, passage

pneumatic lock (compressed-air lock)

closet flushing by means of compressed-air chamber

compressed-air press

air-jet interlaced yarn

temperature controlled air cleaner【环境】;temperature modulated air cleaner【环境】