1) secondary frequency
第二选用频率
2) the success rate of sex selection of the second-baby
第二胎成功性别选择率
1.
This analysis shows that the higher the success rate of sex selection of the second-baby,the higher the sex ratio at birth and the bigger the absolute margin between two kinds of family planning policies,but the relative margin between them is stable.
研究表明,第二胎成功性别选择率越高,出生性别比就越偏高,两种生育政策下的出生性别比绝对差值就越大,相对差值较稳定。
3) secondary option
第二选件
4) frequency paradox
频率作用二重性
1.
The relationship between self-referential processing and word-frequency paradox was examined on three levels of processing.
本实验在三种加工水平下考察了自我参照加工和频率作用二重性的关系,实验分为回忆部分和再认部分,三组被试分别进行自我参照、他人参照和一般语义加工,再认测验包括R/K判断。
5) second curvature
第二曲率
6) frequency selection
频率选择
1.
Analysis on frequency selection of HF communication among the formation
编队内部短波通信频率选择分析
2.
By using the special reconstruction principle and the superiority in decreasing sampling frequency,the application of periodically nonuniform sampling in frequency selection is also presented.
介绍了用滤波器组重构多阶采样信号的原理 ,并且利用多阶采样特殊的重构原理以及在降低采样率上的优势 ,介绍了多阶采样在频率选择上的应用。
补充资料：第二
1.复姓。见《通志．氏族四》。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条