Since Ministry of Education launched the "School to School Connection Network" plan in 2000 year, campus network has been builtup all around the schools in China.
教育部在2000年实施“校校通”工程以来,校园网在全国大部分中小学已经建设起来。
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The paper analyzes the reason for the rail connection squished and recommends the process of restoring the track applying the built-up welding technology.