C329 In the past

Zheng Guoqiang continued to kneel on the ground, and also asked Yu Jingyan for a cigarette. As he smoked, he continued to reminisce.

"Forty-one years ago, the Laonzo probing project first started. At that time, Yuanchao, several teachers of the Academy of Sciences and I came here together to conduct probing research, but at that time, our equipment was very backward