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Employees -- Workload
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20
Heart rate monitoring
3
Temperature
3
Tobacco -- Harvesting
3
Harvesting machinery
2
Vibration
2
Agricultural engineering
1
Agricultural laborers
1
Agricultural machinery
1
Agriculture -- Economic aspects
1
Bulbs (Plants)
1
Enthalpy
1
Equations
1
Errors
1
Force and energy
1
Harvesting
1
Humidity
1
Oxygen consumption (Physiology)
1
Research
1
Scientific apparatus and instruments
1
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