Around the time of the Chinese air force formation, he was chosen to join the army as a Russian translator.
In 1951, Sun and 29 other soldiers were sent to study aircraft engines at the Zhukovsky Air Force Academy in the Soviet Union.
[3] During the Cultural Revolution, Sun was appointed as the chief scientist of the Chinese satellite project.
On April 24, 1970, the first Chinese space satellite, Dong Fang Hong I, was successfully launched.
In 1984, China's first synchronized experimental communication satellite, Dong Fang Hong II was launched.