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蝶阀 : 78 phrases in 18 subjects |
| Architecture | 1 |
| Automobiles | 2 |
| Compressors | 4 |
| Drilling | 3 |
| Electric machinery | 1 |
| Electronics | 1 |
| General | 1 |
| Hydroelectric power stations | 14 |
| Mechanic engineering | 1 |
| Mechanics | 1 |
| Metallurgy | 3 |
| Oil / petroleum | 3 |
| Plastics | 2 |
| Refrigeration | 8 |
| Space | 2 |
| Technology | 28 |
| Water resources | 2 |
| Wind Energy | 1 |
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