發送短信

數:

提供者:

CAPTCHA:

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

Please enter what you see:

發送短信 : Admittance of a one-dimensional double-barrier resonant tunneling nanostructure