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| physical principle | |||
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物理原理 : 29 phrases in 13 subjects |
| Agriculture | 1 |
| Desert science | 1 |
| Earth sciences | 3 |
| Ecology | 2 |
| Economy | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| General | 8 |
| Metallurgy | 2 |
| Nuclear physics | 1 |
| Space | 1 |
| Technology | 6 |
| United Nations | 1 |
| Water resources | 1 |
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