Hitting a dust mote-sized particle would impart the same kinetic energy as slamming head on into a speeding freight train.

与尘埃级别的颗粒相撞，都可能得到与高速货车迎面相撞的能量。

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Then the turbulence characteristics of the spur dike head and backflow region and the distributions law of flow and turbulence kinetic energy around spur dike are obtained in this paper.

利用三维超声学多普勒流速仪对丁坝坝头附近水流和回流区水流的紊动特性进行了系统的观测和分析，得到了丁坝坝头和回流区的水流特性及紊动动能的分布规律。

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Two types of tidal energy can be extracted: Kinetic energy of currents due the tides and potential energy from the difference in height (or head) between high and low tides.

两种类型的潮汐能可提取：电流，由于潮汐的动能和势能之间的高度，从在涨潮和退潮(或主管)的差异。

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