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AA analog adder模拟加法器输出模拟变量为两个或多个输入模拟变量之和或加权之和的装置。AFC amplitude-frequency characteristic振幅频率特性ALE analogue local exchange模拟市内交换AMSU analogue main switching unit模拟主交换装置
AA analog adder Analog adder Outputs analogue variables as the sum of two or more input analogue variables or the sum of weights. AFC amplitude-frequency characteristic ALE analogue local exchange analog AMSU analogue main switching unit analog main switching unit