... frequency diversity radars 频率分集雷达 FD Frequency Diversity 频率差异 pulse frequency diversity 脉冲频率分集 ...
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...建专题语料库，基于对词汇、短语、结构等的出现频率（frequency）、共现频率（co-frequency）、频率差异（frequency difference）的综合分析，描写和挖掘话语所承载的典型信息、所隐含的社会文化内涵（如社群身份认同和社会性别表现）、所体现的语体差异（如学...
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基因频率差异 gene frequency difference
品种之间诱导频率差异很显著。接种花药时，花粉单核中期诱导频率最高。
Induction frequency varies with the different varieties and it is the highest when the excised anthers with the pollen grains at the middle-uninuclear stage are inoculated.
外差探测用来探测传感臂和参考臂由于温度变化引起的输出信号的频率差异。
The heterodyne detection is used to detect the output signal frequency difference between the reference arm and sensing arm, which is caused by the temperature variation.
结果：两种实验设计中对照组与病例组基因型和等位基因频率差异均无统计学意义。
Results:There were no significant differences in the genotype and allele frequencies between cases and controls.
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