發送短信 : Free radical chemistry as related to degradative mechanisms

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