https://blog.wongcw.com/2022/02/12/%e6%8f%ad%e7%a7%98%ef%bc%9a%e5%8b%95%e8%bb%8a%e4%b8%8a%e4%b9%9f%e6%9c%89%e9%bb%91%e5%8c%a3%e5%ad%90%ef%bc%9f/
揭秘:動車上也有“黑匣子”?