Do great things diligently.
Serve the people heart and soul.
Urban-rural mutual assistance
Factory-mine alliance
try one's best
Make money for the country
Strong financial resources.
The sound is sonorous.
Ren Qinshan presented a treasure.
Refining ore into gold
Strive for high yield every day
Play the triumph song every year.
Improve enterprise management
upgrade the technical level (of)
Happiness depends entirely on labor.
Don't mine indiscriminately