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悬 浮 颗粒 : 46 phrases in 14 subjects |
| Automobiles | 1 |
| Aviation | 1 |
| Chemistry | 1 |
| Drilling | 3 |
| Earth sciences | 1 |
| Ecology | 4 |
| Geology | 1 |
| Hydroelectric power stations | 1 |
| Life sciences | 1 |
| Oil / petroleum | 3 |
| Polymers | 1 |
| Space | 1 |
| Technology | 23 |
| Water resources | 4 |
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