https://blog.wongcw.com/2021/07/19/nasa%e5%85%ac%e4%bd%88x-59%e9%9d%9c%e9%9f%b3%e8%b6%85%e8%81%b2%e6%8a%80%e8%a1%93%e9%a3%9b%e6%a9%9f%e7%9a%84%e6%b8%ac%e8%a9%a6%e5%ae%a4/
NASA公佈X-59靜音超聲技術飛機的測試室