https://blog.wongcw.com/2021/06/04/%e6%96%b0%e8%a8%ad%e8%a8%88%e7%9a%84%e6%a9%9f%e5%99%a8%e4%ba%ba%e5%8f%af%e5%88%a9%e7%94%a8%e6%8c%af%e5%8b%95%e5%9c%93%e7%9b%a4%e7%b7%8a%e8%b2%bc%e5%9c%a8%e5%a4%a9%e8%8a%b1%e6%9d%bf%e4%b8%8a/
新設計的機器人可利用振動圓盤緊貼在天花板上