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脉动数 : 30 phrases in 10 subjects |
| Compressors | 1 |
| Construction | 1 |
| Electric machinery | 1 |
| Electronics | 5 |
| Hydroelectric power stations | 1 |
| Metallurgy | 1 |
| Oil / petroleum | 1 |
| Rail transport | 1 |
| Surgery | 2 |
| Technology | 16 |
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