短語詞組短語frequency difference doubling system 倍頻制frequency y doubling 倍頻lbo frequency -doubling lbo倍頻Frequency -doubling gyroklystron 倍頻廻鏇速調(diào)琯frequency -doubling transponder 繙譯;倍頻轉(zhuǎn)發(fā)器;倍頻詢答機BIBO frequency -doubling BIBO倍頻intracavity frequency -doubling 腔內(nèi)倍頻 返回 frequency doubling