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group velocity
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group velocity
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group velocity
群速度
波包在空间的传播速度。
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﹝固体动力学﹞
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group velocity
群速度
波动力学中波群的包络或振幅的最大值在介质中的传播速度,定义为波的频率对波数的偏导数,也是波的能量在介质中传播的速度。
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group velocity
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group velocity
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group velocity
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group velocity
群速度
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group velocity
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