AV的设备规范化，

https://www.zhihu.com/zvideo/1973153625850275005

https://www.zhihu.com/zvideo/1973153625850275005/

https://www.zhihu.com/zvideo/1973153771493278563

https://www.zhihu.com/zvideo/1973153771493278563/

https://www.zhihu.com/zvideo/1973154068588430729

https://www.zhihu.com/zvideo/1973154068588430729/

https://www.zhihu.com/zvideo/1973154236750647950

https://www.zhihu.com/zvideo/1973154236750647950/

https://www.zhihu.com/zvideo/1973153625850275005

https://www.zhihu.com/zvideo/1973153625850275005/

https://www.zhihu.com/zvideo/1973153771493278563

https://www.zhihu.com/zvideo/1973153771493278563/

https://www.zhihu.com/zvideo/1973154068588430729

https://www.zhihu.com/zvideo/1973154068588430729/

https://www.zhihu.com/zvideo/1973154236750647950

https://www.zhihu.com/zvideo/1973154236750647950/

https://www.zhihu.com/zvideo/1973153625850275005

https://www.zhihu.com/zvideo/1973153625850275005/

https://www.zhihu.com/zvideo/1973153771493278563

https://www.zhihu.com/zvideo/1973153771493278563/

https://www.zhihu.com/zvideo/1973154068588430729

https://www.zhihu.com/zvideo/1973154068588430729/

https://www.zhihu.com/zvideo/1973154236750647950

https://www.zhihu.com/zvideo/1973154236750647950/

https://www.zhihu.com/zvideo/1973153625850275005

https://www.zhihu.com/zvideo/1973153625850275005/

https://www.zhihu.com/zvideo/1973153771493278563

https://www.zhihu.com/zvideo/1973153771493278563/

https://www.zhihu.com/zvideo/1973154068588430729

https://www.zhihu.com/zvideo/1973154068588430729/

https://www.zhihu.com/zvideo/1973154236750647950

https://www.zhihu.com/zvideo/1973154236750647950/

https://www.zhihu.com/zvideo/1973153625850275005

https://www.zhihu.com/zvideo/1973153625850275005/

https://www.zhihu.com/zvideo/1973153771493278563

https://www.zhihu.com/zvideo/1973153771493278563/

https://www.zhihu.com/zvideo/1973154068588430729

https://www.zhihu.com/zvideo/1973154068588430729/

https://www.zhihu.com/zvideo/1973154236750647950

https://www.zhihu.com/zvideo/1973154236750647950/

https://www.zhihu.com/zvideo/1973153625850275005

https://www.zhihu.com/zvideo/1973153625850275005/

https://www.zhihu.com/zvideo/1973153771493278563

https://www.zhihu.com/zvideo/1973153771493278563/

https://www.zhihu.com/zvideo/1973154068588430729

https://www.zhihu.com/zvideo/1973154068588430729/

https://www.zhihu.com/zvideo/1973154236750647950

https://www.zhihu.com/zvideo/1973154236750647950/

https://www.zhihu.com/zvideo/1973153625850275005

https://www.zhihu.com/zvideo/1973153625850275005/

https://www.zhihu.com/zvideo/1973153771493278563

https://www.zhihu.com/zvideo/1973153771493278563/

https://www.zhihu.com/zvideo/1973154068588430729

https://www.zhihu.com/zvideo/1973154068588430729/

https://www.zhihu.com/zvideo/1973154236750647950

https://www.zhihu.com/zvideo/1973154236750647950/

https://www.zhihu.com/zvideo/1973153625850275005

https://www.zhihu.com/zvideo/1973153625850275005/

https://www.zhihu.com/zvideo/1973153771493278563

https://www.zhihu.com/zvideo/1973153771493278563/

https://www.zhihu.com/zvideo/1973154068588430729

https://www.zhihu.com/zvideo/1973154068588430729/

https://www.zhihu.com/zvideo/1973154236750647950

https://www.zhihu.com/zvideo/1973154236750647950/

https://www.zhihu.com/zvideo/1973153625850275005

https://www.zhihu.com/zvideo/1973153625850275005/

https://www.zhihu.com/zvideo/1973153771493278563

https://www.zhihu.com/zvideo/1973153771493278563/

https://www.zhihu.com/zvideo/1973154068588430729

https://www.zhihu.com/zvideo/1973154068588430729/

https://www.zhihu.com/zvideo/1973154236750647950

https://www.zhihu.com/zvideo/1973154236750647950/

https://www.zhihu.com/zvideo/1973153625850275005

https://www.zhihu.com/zvideo/1973153625850275005/

https://www.zhihu.com/zvideo/1973153771493278563

https://www.zhihu.com/zvideo/1973153771493278563/

https://www.zhihu.com/zvideo/1973154068588430729

https://www.zhihu.com/zvideo/1973154068588430729/

https://www.zhihu.com/zvideo/1973154236750647950

https://www.zhihu.com/zvideo/1973154236750647950/

https://www.zhihu.com/zvideo/1973153625850275005

https://www.zhihu.com/zvideo/1973153625850275005/

https://www.zhihu.com/zvideo/1973153771493278563

https://www.zhihu.com/zvideo/1973153771493278563/

https://www.zhihu.com/zvideo/1973154068588430729

https://www.zhihu.com/zvideo/1973154068588430729/

https://www.zhihu.com/zvideo/1973154236750647950

https://www.zhihu.com/zvideo/1973154236750647950/