發送短信 : Threaded spikes for bluff body base flow control

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