... 极岁差周期 polar precession cycle 频率差 difference of frequency; frequency difference 黑白频率差 white to black frequency swing ...
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Difference Threshold of Frequency 频率辨别阙限
Frequency Difference of Arrival 到达频差 ; 到达频率差 ; 多普勒频差定位
difference limen of frequency 频率差阈
phase-delay of difference frequency [通信] 差频相位延迟
difference frequency distortion of loudspeaker 扬声器差频失真
difference frequency of phase measuring 差频测相
estimation of frequency difference 频差估计
The time history of drift motion of mooring buoy in regular wave and wave group is calculated. The relation between drift motion and wave height or difference of frequency is discussed.
计算了规则波和波群中系泊浮筒漂移运动的时间历程，讨论了其运动与波高、频差的关系。
Looking at the frequency difference, they realized that the shaking speed was connected to the radius of the animal's body.
通过观察身体动作频率的差别他们了解到，抖动的速率原来与动物身体的半径有关。
Those creatures have long had four-color vision, but a key difference is that their fourth type of color detector is in the high-frequency ultraviolet range, beyond where humans can see.
这些动物早已拥有四色觉，但关键的区别是，他们的第四种颜色位于高频的紫外线区域，在人类可视范围之外。
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