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| surficial organism | |||
| 表面生物: 24 phrases in 9 subjects |
| Agriculture | 2 |
| Animal husbandry | 1 |
| Ecology | 2 |
| General | 1 |
| Hydroelectric power stations | 1 |
| Oil / petroleum | 2 |
| Polymers | 1 |
| Technology | 13 |
| Water resources | 1 |
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