记者:长江三峡大江截流中,有哪些方面属世界之最?实施大江截流的目的是什么?王家柱:三峡工程大江截流无论从技术上,还是施工规模上,都是难度极高的工程,特别是它的截流设计流量、施工水深和施工强度都居世界前列。大江截流不是我们的最终目的,实现大江截流,是三峡工程顺利地进入二期工程施工的必要步骤。按长江多年水情特点,大 Reporter: What are the purposes of the implementation of the major river closure in the Three Gorges Dam Interception? Wang Jiazhu: The closure of the Three Gorges Dam in terms of technology and construction scale are all extremely difficult projects. In particular, It is the closure of design flow, construction depth and construction strength are the highest in the world. The river closure is not our ultimate goal, and the closure of the major rivers is necessary for the Three Gorges Project to smoothly enter the second phase of construction. According to the characteristics of the Yangtze River water for many years, large