Dubbo 路由（router）机制及其如何实现流量管控介绍

https://cn.dubbo.apache.org/zh-cn/overview/what/core-features/tasks/traffic-management/weight/

Start with the linked Dubbo traffic-management/weight page and inspect the attached image for the intended scope. Compare that material with the requested router-mechanism and traffic-control introduction; done means a clear, complete Chinese documentation page covering the stated topic and fitting the website's existing structure.

Written by the indexing model from the issue text.