https://blog.international-lan.com/%e9%80%9a%e8%bf%87%e6%89%8b%e8%85%95%e9%9d%a0%e8%ba%ab%e4%bd%93%e8%83%bd%e6%ba%90%e4%b9%9f%e8%83%bd%e7%bb%99%e6%89%8b%e6%9c%ba%e5%85%85%e7%94%b5/
通过手腕靠身体能源也能给手机充电