My father Zhang is my child.

His father Zhang is his son. Chea Chang's grandfather was a famous geologist who made great contributions to the search for oil and uranium deposits in China. His grandfather, Mr. Zhao Jiuzhang, a meritorious scientist with two bombs and one satellite, was the founder of China's space science and satellite. His father, Mr. Zhang, is a famous expert in nuclear physics and an academician of China Academy of Sciences. Chea Chang was an expert in chips, but later he switched careers. It can be said that they are all pillars of the country.