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однощелевой |
single-hole : 20 phrases in 11 subjects |
Antennas and waveguides | 1 |
Armored vehicles | 3 |
Astronautics | 1 |
Geophysics | 1 |
Medical | 1 |
Metallurgy | 3 |
Oil / petroleum | 2 |
Oil and gas | 2 |
Oil and gas technology | 1 |
Technology | 3 |
Transport | 2 |