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πρωτόνιο |
proton-proton: 36 phrases in 12 subjects |
Chemistry | 1 |
Earth sciences | 5 |
Electronics | 1 |
Energy industry | 1 |
Environment | 6 |
Health care | 1 |
Information technology | 1 |
Life sciences | 3 |
Medical | 11 |
Natural sciences | 3 |
Physical sciences | 1 |
Technology | 2 |