摘要：NASA's new X-59 quiet supersonic jet takes off，Its design allows it to break the sound barrier with a 'quiet thump' rather than a

NASA's new X-59 quiet supersonic jet takes off，Its design allows it to break the sound barrier with a 'quiet thump' rather than a boom。NASA said the sound would be like'the closing of a car door'。

来源：海上漂泊的蒲公英