... 频率共用电路 frequency-sharing circuit; 频率轨迹 frequency locus; 频率过低 underfrequency; ...
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frequency reponse locus 频率响应轨迹图 ; 频率相应轨迹图
frequency vector locus 频率矢量轨迹
frequency response locus 频率响应轨迹图
frequency y locus 频率轨迹
frequency interleaved locus 频率轨迹
Objective To investigate the genetic polymorphism of HLA-B locus in Guangdong Han population and compare the characteristic of the allele frequency distribution with that in other populations.
目的调查广东汉族人群HLA-B位点基因多态性，比较不同人群HLA-B等位基因频率分布特征。
Methods A simple, rapid and sensitive poly-nuclear cell assay was used to investigate the frequency of HPRT locus mutation.
方法采用多核细胞法研究肿瘤患者外周血淋巴细胞HPRT基因位点的突变频率，并与正常人群进行对比。
The relatively complete theory of frequency method and root locus method for the design of automatic control system was set up through the efforts of numerous scholars after world war II.
二次大战以后，经过众多学者的努力，形成了较为完整的自动控制系统设计的频率法理论和根轨迹法理论。
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