片语
air purification[环境] 空气凈化
air purge piping吹灰管
air conditioning purge空调凈化
refrigerator air purge duct制冷机放空气管
air-purge method吹气法
air cleaning[环境] 空气凈化;风力选矿;空气过滤
air dryer purge valve空气干燥器凈化阀
air purge valve空气凈化阀
air-purge seal吹气密封
air only purge只用压缩空气吹洗
air r purge空气吹扫