 |
| leak proof: 24 phrases in 15 subjects |
| Astronautics | 1 |
| Automated equipment | 2 |
| Automobiles | 1 |
| Construction | 1 |
| Drilling | 1 |
| Energy industry | 1 |
| Makarov | 1 |
| Mechanic engineering | 1 |
| Military | 4 |
| Natural resourses and wildlife conservation | 1 |
| Nuclear and fusion power | 1 |
| Rail transport | 1 |
| Surgery | 1 |
| Technology | 3 |
| Transport | 4 |