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A 450kph limit for the rolling stock is great, but how many lines are actually capable of these speeds? There's only a single line (Chengdu–Chongqing, currently under construction) which is designed for 350kph, with sections capable of 400kph. Aside from that, most lines are at 350kph - unless I'm missing something.
This project is an enhanced reader for Ycombinator Hacker News: https://news.ycombinator.com/.
The interface also allow to comment, post and interact with the original HN platform. Credentials are stored locally and are never sent to any server, you can check the source code here: https://github.com/GabrielePicco/hacker-news-rich.
For suggestions and features requests you can write me here: gabrielepicco.github.io