上游水位线
The calculated result showed that the dredging scheme along the straight line with an angle of 90 ° was very effective for lowing the upstream flood water level, and it was feasible to reduce one hole on the flood gate.
结果表明,开潭水利枢纽上游90°直线疏浚方案对降低上游洪水位的效果较为明显,同时泄洪闸减少一孔是可行的。
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