
It describes the story of PLA commanders and scientific workers successfully developing ground-to-air rockets to defend the airspace of the Chinese motherland at the diretcion of Premier Zhou.
7.1
6.1
7.5
7.5
7.1
6.7
6.0
6.4
6.3
6.4
7.1
6.0
6.1
6.8
8.0
7.5
6.7
6.6