英语词汇group velocity怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	group velocity
释义	group velocity 简明释义群速度：波动系统中，波包或波群的传播速度，通常与波的相速度不同。网络释义 1 [电子物]?群速度 ... group technology 群工艺学 group velocity 群速度 grown junction 生长结 ... 2 [电子物]?群速 ... velocity of flow临；流动速度 group velocity群速 particle velocity粒子速度；质点（振动）速度 ... 短语 1 group velocity dispersion 群速度色散 ; 的群速色散 ; 群速色散 2 Rayleigh group velocity 瑞利波群速度 3 frequency-dependent group velocity 频率相关群速度双语例句 1 When the medium density increases (with more atoms), the slow group velocity decreases. 当介质的密度增加时（包含更多的原子），群速度就降低。 2 The reflection spectrum, time delay, and group velocity dispersion (GVD) of the gratings are analyzed. 并对此种光栅的反射谱，时延及群速度色散进行了理论分析； 3 To validate the theoretical analysis, a test system for group velocity delay was set up based on RF modulation. 为了验证理论分析，设计了射频调制法测试介质膜滤波器群速度延时的实验装置。
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