The Automatic Identification System(abbreviated as AIS)is a new navigation aid,which is tobe mandatory for the installment on ships by the MSC73 Resolution,IMO.是什么意思_The Automatic Identification System(abbreviated as AIS)is a new navigation aid,which is tobe mandatory for the installment on ships by the MSC73 Resolution,IMO.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句