發送短信

數:

提供者:

CAPTCHA:

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

Please enter what you see:

發送短信 : Asymmetric transmission and optical low-pass filtering in a stack of random media with graded transport mean free path