1·Because the asphalt concrete can be repaired quickly and it can impound water immediately after repairing, the adoption of asphalt concrete facing has certain advantage.
由于沥青混凝土可快速修补，修补后没有龄期要求即可蓄水，因此采用沥青混凝土护面具有一定的优越性。
2·If the water amount exceeds the limit, we can then adjust the discharging strategy by two ways (pre discharge or impound), to attain the aim of avoiding or decreasing diffluence water amount.
若出现超载水量，则从两方面调整各水库的泄洪策略(拦蓄与预泄)，以达到避免或减少分洪水量的目的。
3·Earth dam is one of the most important constructions of the reservoir pivot and its function is to impound flood water.
土坝是水库枢纽的主要建筑物之一，主要起着拦蓄洪水的作用。