Chain Pump
A chain pump is a type of water pump in which several circular discs are positioned on endless chain. One part of the chain dips into the water, and the chain runs through a tube, slightly bigger than the discs. as the chain is dran up the tube, water becomes trapped between the discs and is lifted to the top.
Harrow
Ox
Rice Paddies
A field flooded with water in which rice is grown.Terrace Farming
A series of flat areas cut out of a hill like steps, and used to grow crops.
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