發送短信 : Controlled unfolding of elastic hinges

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