pump
A worker goes down to the village to transfer technology (1964, October)
Only cadres who persevere in labor can persevere in revolution (1965, December)
Spring rain (early 1970s)
Pumping station in the fields (1973, January)
Not depending on the sky (1975)
Support agriculture with great force (1975, November)
The train supporting agriculture reaches the mountain village (1976, October)
A new direction in a dry district (1977, October)
