（1）频数匹配（frequency matching）：明确或估计出匹配变量每一层的病例数，然后从备选对照中选择对照，直至达到每层所要求的数目，不一定要求绝对数相等，重要的是...
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frequency matching or group matching 频数匹配
Speed or frequency matching device 速度或频率相配装置 ; 速度或频率匹配元件
Optimal frequency matching 最优频谱匹配
frequency matching method 频率匹配法
frequency matching device 频率匹配装置
Frequency Response Matching 频率特性匹配
Frequency Similarity Matching 频率相似性匹配
The high frequency matching network mainly used lumped element lowpass network, including the series capacitance, series inductance and shunt grounded capacitance.
高频匹配网络主要采取集中参数低通形式，串联部分电感、电容参加匹配，并联部分对地电容参加匹配。
The high frequency matching network mainly used lumped element lowpass network, including the series capacitance , series inductance and shunt grounded capacitance.
高频匹配网路主要采取集中参数低通形式，串联部分电感、电容参加匹配，并联部分对地电容参加匹配。
A unique new method is advanced for obtaining the transistor characteristic curves clearly and stably, s parameters and the frequency matching parameters with the transistor individuality.
提出了为清晰、稳定地获得高频下晶体管特性曲线、S参量以及具有晶体管个性的特征频率匹配参数的一种独特的新方法。
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