發送短信

數:

提供者:

CAPTCHA:

             ___      ____       ___              
    ___     / _ \\   |  _ \\    / _ \\      ___   
   /   ||  / //\ \\  | |_| ||  | / \ ||    /   || 
  | [] || |  ___  || | .  //   | \_/ ||   | [] || 
   \__ || |_||  |_|| |_|\_\\    \___//     \__ || 
    -|_|| `-`   `-`  `-` --`    `---`       -|_|| 
     `-`                                     `-`

Please enter what you see:

發送短信 : A tree-ring cellulose δ<sup>18</sup>O-based July-October precipitation reconstruction since AD 1828, northwest Thailand