發送短信 : Lightning performance of covered conductors overhead distribution lines

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