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| Keywords: The Wind Tunnel of Tsinghua University in 1937.gif en The Wind Tunnel of Tsinghua University in 1937 zh 清华大学航空馆楼下，此风洞 大直径为10英尺（即实验部分）， 小直径为5英尺，可制成小型模型飞 举行实验，以便研究空气动力学与飞 之关系 1937年摄 http //hy tsinghua edu cn/intro/page1 asp Tsinghua University 1937 Tsinghua University PD-old | ||||
