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| master link; pivotal link (Alexander Demidov) | |||
| key link (e.g., in the chain Alexander Demidov) | |||
| main point (напр., при доказательстве ssn) | |||
| fundamental unit (макромолекулы) | |||
| основное звено: 9 phrases in 6 subjects |
| Aviation | 1 |
| Chemistry | 1 |
| Makarov | 2 |
| Mass media | 3 |
| Military | 1 |
| Programming | 1 |