可以在研究区域中选择合适的地区修建雨水蓄水池以储存多余的雨水供旱期使用。

We can build a rainwater reservoir in the appropriate location in the study area so as to store redundant rain water for dry season use.

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去年一段旱期威胁着庄稼。

A dry spell threatened the crops last year.

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分析了含水量在关键时段的主要分布情况，为研究南方夏旱期积云的人工影响方法提供物理依据。

An analysis is made of the main distribution of water content in the key period, which provides a physical basis for the study of artificial precipitation in cumulus in the southern summer dry period.

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