1, Chen Jingrun's story:

1977, Chen Jingrun was admitted to 309 Hospital due to illness, and met Yu Kun who had just been sent to the hospital for further study from Wuhan Military Region. In the past, Chen Jingrun didn't even touch the edge of a woman's name and didn't even say a word.

This time, Chen Jingrun, who is nearly half a century old, saw Youkun, and his eyes lit up. He greeted Youkun kindly and talked too much. Later, Kun was sent to the ward in Chen Jingrun as a doctor on duty. There are more opportunities for such contact. Every time Kun Yi appears, Chen Jingrun is particularly happy.

2. Hua's story:

While continuing to study mathematical theory, Hua tried to find a way to combine mathematics with industrial and agricultural practice. After a period of practice, he found that the overall planning method and optimization method in mathematics can be widely used in industrial and agricultural production.

It can improve work efficiency and change the face of work management. Therefore, while giving lectures at the University of Science and Technology, he led students to promote the optimization method and overall planning method in industrial and agricultural practice.