 |
| |||
| ring cross-section | |||
| annular section; hollow circle | |||
| annular cross-section | |||
| annulus cross section; ring cross section | |||
| кольцевое сечение: 33 phrases in 13 subjects |
| Astronautics | 1 |
| Automobiles | 3 |
| Caspian | 1 |
| Construction | 2 |
| Electronics | 1 |
| Energy industry | 1 |
| Military | 1 |
| Nautical | 2 |
| Oil / petroleum | 3 |
| Oil and gas | 3 |
| Production | 1 |
| Technology | 11 |
| Transport | 3 |