论文部分内容阅读
50多年前,周恩来总理亲自批准修建了密云水库。她是华北地区最大的水利工程,蓄水量达43.75亿立方米、最大水面188平方公里,是首都主要饮用水源基
More than 50 years ago, Premier Chou En-lai personally approved the construction of Miyun Reservoir. She is the largest water conservancy project in North China, with a storage capacity of 4,375 million cubic meters and a maximum surface area of 188 square kilometers. She is the main water source base of the capital