Text this: Characteristics of pantograph-catenary arc under low air pressure and strong airflow

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