... obstructed crest of spillway 设闸的溢洪道顶 spillway crest gate 溢流堰顶闸门 uncontrolled crest spillway 无闸门控制的溢洪道 ...
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Through hydraulic model tests, the spillway crest profile was optimized so as to achieve the required capacity on one hand and to minimize the cost of the spillway crest and the new gate on the other.
通过水工模型试验，一方面优化溢洪道顶部轮廓，另一方面降低溢洪道顶部改造和新闸门的成本。
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