أرسل هذا في رسالة قصيرة: Major ion chemistry and dissolved inorganic carbon cycling in a human-disturbed mountainous river (the Luodingjiang River) of the Zhujiang (Pearl River), China

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  \  //     _| ||_  |  --  \\    | ||      | ||   
   \//     /_____// |______//    |_||      |_||   
    `      `-----`  `------`     `-`'      `-`'