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rotation speed: 29 phrases in 14 subjects |
Agriculture | 1 |
Chemistry | 1 |
Construction | 1 |
Earth sciences | 4 |
General | 1 |
Mechanic engineering | 3 |
Mechanics | 2 |
Medical appliances | 5 |
Mineral products | 2 |
Optics branch of physics | 1 |
Physical sciences | 1 |
Physics | 2 |
Technology | 3 |
Transport | 2 |