Zhan Tianyou's text was about a Chinese engineer, Zhan Tianyou, who described his experience in building the Beijing-Zhangjia railway in the United States. Zhan Tianyou was an excellent engineer. He had a deep understanding of China's cultural traditions and scientific knowledge. In the process of building the Jing-Zhang railway, he faced all kinds of difficulties, but he always adhered to a scientific attitude and tried to solve the problems. He used a series of advanced science and technology, such as track measuring instruments, steam-powered trains, etc., to make the construction process of the Beijing-Zhangjia railway more efficient and accurate. He also put forward the theory of "man-made disasters" to oppose the possibility of human error in the construction of the railway, which caused widespread discussion and influence in China. Zhan Tianyou's performance in the construction of the Beijing-Zhangjia railway demonstrated his outstanding engineering skills and pursuit of scientific spirit, which also made him an outstanding figure in modern Chinese history.