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ＡＵ Ａｄａｐｔａｔｉｏｎ Ｕｎｉｔ 适配单元ＡＵ Ａｄｍｉｎｉｓｔｒａｔｉｖｅ Ｕｎｉｔ 管理单元ＡＵＣ ＡＵｔｈｅｎｔｉｃａｔｉｏｎ Ｃｅｎｔｅｒ 验证中心ａｕｄｉｏｃｏｎｆｅｒｅｎｃｅ 电话会议 这是指由电话电路来连接会场的一种电信会议，除了话音信号外，还能
AU Adaptation Unit AU Administrative Unit Management Unit AUC AUthentication Center Authentication Center audioconference Teleconference This is a teleconference that is connected to a conference site by a telephone circuit. In addition to the voice signal,