發送短信 : Develop an online system for 66kV sheath fault detection/location

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