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Agricultural engineering
5
Agricultural facilities
1
Agricultural implements
1
Agricultural machinery
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10
Agriculture -- Research
1
Automation -- Human factors
1
Design -- Human factors
1
Force and energy
1
Human engineering
1
Lifting and carrying
1
Mathematics
1
Pesticides
1
Pests -- Control
1
Spraying equipment
1
Tobacco
2
Tobacco -- Experiments
1
Tobacco -- Harvesting
2
Tobacco -- Research
2
Tobacco curing
2
Vibration
2