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| speed reducer: 31 phrases in 10 subjects |
| Automated equipment | 8 |
| Electronics | 1 |
| Energy industry | 2 |
| Mechanics | 3 |
| Metallurgy | 2 |
| Oilfields | 1 |
| Roll stock | 2 |
| Technology | 6 |
| Thermal engineering | 1 |
| Transport | 5 |
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