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

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