發送短信 : Composite pipes subjected to bending loads

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