The latest research on wave height and return period doesn't address Padang's needs; the real problem is simply that there is not enough time to evacuate.

最近关于海浪高度和周期研究以满足巴东人的需求，现实问题是没有足够的时间撤离。

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By timing how long the signal takes to make the return trip, the instruments can determine differences in height.

通过计算信号往返需要的时间，仪器可测定差距高度。

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This paper also discusses the influence of typhoon wave patterns on the coastal engineering design parameters such as wave height, return period, etc.

文中还讨论了台风波浪波型对海岸工程建设中的设计波高、周期等要素取值的影响。

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Rafa brings up 30-0 in no time, his viciously-spinning forehand forcing Ferrer to return balls at head height.

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By timing how long the signal takes to make the return trip, the instruments can determine differences in height.

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Siemens' president and chief executive Dr Heinreich von Pierer forecasts that the growth in IT will return, but they are unlikely to see levels of growth seen at the height of the boom.

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