發送短信

數:

提供者:

CAPTCHA:

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

Please enter what you see:

發送短信 : Estimating the velocity of pyroclastic density currents using an operational dual-PRF radar