直线筛,使用震动电机。
我们的确会使用震动持续时间来估计一些小型地震的震级。
We actually do use the duration of shaking to estimate the magnitude for some small earthquakes.
研究人员使用拉曼光谱可以观察到键的震动能量的变化然后计算出键长的变化。
Researchers were able to use Raman spectroscopy to look at the change of the vibrational energy of the bond and then work out the change in bond length.
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