發送短信 : Characterizations of carbon nanotubes grown on clay

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