the Intelligent Manufacturing in China--- Refrigeration technology
体验冷暖世界，感受智造中国
Breathing Healthy Air in Public Transportation
在公共交通中呼吸健康空气
Course Syllabus 课程章节
1improving air environment of public transportation to effectively deal with the sudden outbreak of COVID-19
改善公共交通空气坏境，有效应对突如其来的新冠疫情
General Courses 通用课程
