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Employees -- Workload
11
Vibration
7
Tobacco -- Harvesting
6
Agricultural engineering
5
Agricultural machinery
5
Micrometers (Instruments)
4
Temperature
4
Equations
3
Force and energy
3
Harvesting machinery
3
Heart rate monitoring
3
Nozzles
3
Tractors
3
Air
2
Farm mechanization
2
Machinery
2
Oxygen consumption (Physiology)
2
Potentiometer
2
Tobacco
2
Tobacco industry
2