水库夏汛时间长，洪量大，是水库确保防洪安全和实现兴利效益的关键时期。
The summer flood reason is the key period for reservoir controlling flood and achieving benefit because this stage is longer and the volume of flood is larger.
水库夏汛时间长，洪量大，是水库确保防洪安全和实现兴利效益的关键时期。
The summer flood reason is the key period for reservoir controlling flood and achieving benefit because this stage is longer and the volume of flood is larger.
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