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  ____       ___     ______    _    _    __   __  
 |  _ \\    / _ \\  |      \\ | || | ||  \ \\/ // 
 | |_| ||  | / \ || |  --  // | || | ||   \   //  
 | .  //   | \_/ || |  --  \\ | \\_/ ||   / . \\  
 |_|\_\\    \___//  |______//  \____//   /_//\_\\ 
 `-` --`    `---`   `------`    `---`    `-`  --`

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Text this: Ecological Security Assessment and Countermeasures of Water Environment Based on Improved Analytic Hierarchy Process: A Case Study of Xingtai City