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Switching Division; overlap sending; U2 |
N2 : 51 phrases in 13 subjects |
American usage, not spelling | 1 |
Biology | 1 |
Chemistry | 22 |
Communications | 2 |
Food industry | 7 |
Health care | 2 |
Medical | 3 |
Medical appliances | 3 |
Mining | 1 |
Nuclear physics | 1 |
Statistics | 2 |
Transport | 1 |
Радиоактивное излучение | 5 |