单词:aerators
(aerator 的复数) [化] 曝气器; 曝气装置
[医] 曝气池; 充气器, 灌气器
[医] 曝气池; 充气器, 灌气器
plural of aerator
n. an apparatus for exposing something to the air (as sewage)
n. an apparatus for exposing something to the air (as sewage)