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