發送短信 : EXPECTED PERFORMANCE OF SOME LOT-SIZING HEURISTICS IN A ROLLING-SCHEDULE ENVIRONMENT.

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