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heat exchanger : 78 phrases in 15 subjects |
| Agriculture | 3 |
| Chemistry | 2 |
| Coal | 1 |
| Construction | 15 |
| Earth sciences | 16 |
| Electronics | 1 |
| Energy industry | 1 |
| Food industry | 1 |
| General | 2 |
| Life sciences | 1 |
| Mechanic engineering | 25 |
| Medical | 1 |
| Metallurgy | 1 |
| Natural resourses and wildlife conservation | 4 |
| Transport | 4 |