gear

Gears on top of machinery must be covered

Gears on top of machinery must be covered (1953, May)

Untitled (Great Leap Forward banner)

Untitled (Great Leap Forward banner) (1958)

Untitled (Great Leap Forward banner)

Untitled (Great Leap Forward banner) (1958)

Set up high expectations, climb high peaks, greatly go in for a technological revolution

Set up high expectations, climb high peaks, greatly go in for a technological revolution (1960, June)

We are the masters of science

We are the masters of science (1978, July)

Greatly develop the mechanization of agriculture, spread the successful news of applying science in tilling the fields

Greatly develop the mechanization of agriculture, spread the successful news of applying science in tilling the fields (1979, January)

Careful with the "tiger mouth"

Careful with the "tiger mouth" (1981, April)

Strengthen labor safety, make a good job of safe production

Strengthen labor safety, make a good job of safe production (1982, April)

Safe production, intelligent production

Safe production, intelligent production (1984, April)

Be careful about machinery inflicting wounds on people

Be careful about machinery inflicting wounds on people (1984, April)

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