When Yuwen Kai designed and constructed Luoyang city, the Gu and Luo Rivers were introduced from Jicui pool at Xiyuan through Huangdao trench in front of the imperial city to Tongji trench.
提出宇文恺规划和营建东都洛阳城时，是在西苑引谷水和洛河入积翠池，经皇城前黄道渠入通济渠的。
In the end, this method application in the Bai-he Tan and the Luo-gu hydro-power slope engineering.
最后将这种方法应用在白鹤滩与洛古水电站边坡工程。
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