Where can I refuel the plane?

At the airport, of course, there is no civil aviation plane to refuel in the air. Usually, airplanes relying on bridges use pipeline tankers to refuel. There is a refueling pipeline under the ground near the airport. It is only necessary to connect the oil inlet pipe and the oil outlet pipe of the pipeline refueling vehicle to the ground refueling port and the aircraft refueling port respectively. Aircraft located far away can only refuel by tanker.