为了贯彻胡耀邦同志关于做好“第二篇文章”的指示精神,我们在广西拉浪水电站增加泄洪能力的扩建和改建中,经过反复研究,对设计作了两次重大修改,终于选出了最优方案,从而为实现大幅度降低工程造价、缩短施工周期的目标打下了基础。现将我们在拉浪水电站改建和扩建设计过程中如何选择最优方案的情况简要介绍如后。 In order to carry out Comrade Hu Yaobang’s directives on doing a good job on the second article, we made two major changes to the design during the expansion and reconstruction of the expansion of flood discharge capacity at Guangxi Langlang Hydropower Station, and finally selected the most Excellent plan, so as to achieve a substantial reduction in project cost, shorten the construction cycle of the goal laid the foundation. Now we are in Langlang hydropower station reconstruction and expansion of the design process how to choose the best scenario as outlined below.