基本释义:

差群

网络释义

1)difference group,差群

2)population differences,居群差异

3)differential group delay(DGD),群时延差

4)differential group delay,群时延差

5)difference in crowds,人群差异

6)group difference,群体差异

用法和例句

Through changing the parameters, many effects caused by the first-order polarization mode dispersion can be gotten, and differential group delay, pulse broadens and eye-diagrams in different syst.

通过改变通信系统参数,研究一阶偏振模色散对不同通信系统的影响,分析在不同系统参数情况下的偏振模色散群时延差、信号脉冲展宽和信号眼图,并讨论了不同码型对偏振模色散的影响。

A new method is proposed to measure the output states of polarization of single mode fiber with a polarizer and an optical spectrum analyzer, the differential group delay (DGD) of polarization mode dispersion (PMD) can be acquired.

提出利用检偏器和光谱仪同时测量单模光纤各个波长的输出偏振态 ,从而测量出偏振模色散群时延差 ,这种方法和传统方法相比 ,测量时间大为节省 ,降低了偏振模色散随时间变化而引起的测量误差 ,提高了测量精度。

The result showed that there was significant group difference between the female taekwondo athletes and average female college students in the time span and the degree of attention blink,and there was significant sport rank deference between the elite female taekwondo athletes and ordinary female taekwondo athletes in the time .

对女子跆拳道运动员与普通女大学生、高水平与一般水平女子跆拳道运动员之间注意瞬脱特征进行测试,结果显示,女子跆拳道运动员的注意瞬脱特征与普通女大学生相比较注意瞬脱持续时间短,注意瞬脱程度轻,表现出了注意瞬脱的群体差异;女子高水平跆拳道运动员较一般水平女子跆拳道运动员注意瞬脱持续时间短,注意瞬脱程度轻,表现出了运动级别差异。

Results showed that there exited significant group difference of the degree of attentional blink, the last time of attentional blink, the lowest point of attentional blink between primary school students grade two and grade four, especially between the two group female primary school students.

结果发现:小学二年级学生与小学四年级学生在其注意瞬脱程度、注意瞬脱持续时间、注意瞬脱的最低点上都存在非常显著的群体差异,其中又以女性小学生之间的群体差异更为显著。

The results show that there is a significant group difference between the female soccer players and the average female P.

为揭示女子足球运动员的注意瞬脱特征,采用自行开发的测试软件对20名女子足球运动员和38名普通体育女大学生的注意瞬脱特征进行测试,结果发现,女子足球运动员注意瞬脱出现的时间点、注意瞬脱持续时间、注意瞬脱程度都与普通体育女大学生之间存在非常显著的群体差异。