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from article Dairy cattle production
Modern machinery is used in the production of milk. (Credit: Yadamons/Getty Images)
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from article Dairy cattle production
A typical dairy cattle farm in northeast Iowa. (Credit: Lynn Betts/Natural Resources Conservation Service, U.S. Department of Agriculture)
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from article Dairy cattle production
Holstein dairy cattle in Washington County, Virginia. (Credit: Jeff Vanuga/Natural Resources Conservation Service, U.S. Department of Agriculture)
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from article Agricultural aircraft
An agricultural aircraft applying pesticide over a field. (Credit: BrianBrownImages/Getty Images)
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from article Agricultural aircraft
Application equipment for fixed-wing agricultural aircraft. The spraying equipment is shown on the aircraft, and a ram-air-type spreader for dry materials is shown below the aircraft.
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from article Agricultural aircraft
Application equipment for rotary-wing agricultural aircraft. (a) Helicopter with spray equipment attached. (b) Dry equipment. (c) Detail of hopper and spinner.
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from article Set theory
Sets of points on a plane.
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from article Set theory
Vertical projection of set X onto segment Y.
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from article Polygon
Triangle ABC with nine-point circle. Symbols are explained in text.
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from article Polygon
Regular pentagon, showing approximate construction without a protractor. Symbols are explained in text.
