单词	后降进程
释义	后降进程fall back procedure
随便看	signal ambiguity factor signal ambiguity function signal ammunition signal ampliffcaton signal amplification signal amplificaton signal amplificaton， signal conditioning signal amplifier signal-- amrking signal analysis signal analyzer signal and array processing signal and data processing circuits signal anxiety signal apparatus signal area signal-arm type signal aspect signal-- asynchronous signal attenuation signal averager signal averaging signal-- background signal-background ratio signal baler