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压力 差 : 150 phrases in 25 subjects |
| Agriculture | 1 |
| Automobiles | 8 |
| Aviation | 3 |
| Bridge construction | 2 |
| Compressors | 2 |
| Construction | 2 |
| Desert science | 2 |
| Drilling | 2 |
| Earth sciences | 2 |
| Electric machinery | 1 |
| Electronics | 5 |
| Food industry | 1 |
| Geophysics | 5 |
| Hydroelectric power stations | 1 |
| Metallurgy | 14 |
| Mining | 2 |
| Nursing | 1 |
| Oil / petroleum | 9 |
| Rail transport | 4 |
| Refrigeration | 4 |
| Shipbuilding | 1 |
| Space | 8 |
| Surgery | 2 |
| Technology | 64 |
| Wind Energy | 4 |
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