double frequency〔名词〕二倍频率双频率详细»
倍频double frequency详细»
倍频frequency doubling;frequency multiplication详细»
倍频doublefrequency详细»
倍频doublefrequency;frequency multiplier klystron;multiplefrequency详细»
倍频frequency multiplication详细»
倍频octonary详细»
倍频doubling of frequency;frequency multiplication;octonary详细»
倍频frequency multiplication详细»