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温度 曲线 : 122 phrases in 25 subjects |
| Agriculture | 1 |
| Animal husbandry | 1 |
| Automobiles | 3 |
| Aviation | 1 |
| Bridge construction | 1 |
| Chemistry | 1 |
| Construction | 2 |
| Desert science | 1 |
| Earth sciences | 1 |
| Electronics | 4 |
| Engineering geology | 1 |
| General | 5 |
| Geology | 1 |
| Geophysics | 1 |
| Hydroelectric power stations | 1 |
| Metallurgy | 37 |
| Nautical | 1 |
| Oil / petroleum | 5 |
| Oil processing plants | 1 |
| Plastics | 4 |
| Polymers | 2 |
| Rail transport | 1 |
| Refrigeration | 3 |
| Space | 1 |
| Technology | 42 |
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