In Tsengwen Dam Raise Reservoir Water Level Project at Taiwan, the greatest construction risk is the overtopping of the dam by flood when the crest is lowered by excavations. 但在取得成績(jì)的同時(shí)，也陸續出現了若干座水庫在除險加固完成后或加固過(guò)程中發(fā)生潰壩的不正?，F象，反映病險水庫除險加固工作還存在不可忽視的缺陷。
We will pool resources to basically complete, within two or three years, the upgrading of all largemedium-sizedkey dilapidated small reservoirs in China. 集中力量用兩到三年時(shí)間基本完成全國大中型和重點(diǎn)小型病險水庫改造。
