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海水污染
| 区
| 海水污染 | |
| ecol. | seawater pollution |
| oil | marine fouling |
| 0区 | |
| el. sec.sys. | zone 0 |
| 1区 | |
| el. sec.sys. | zone 1 |
| 20区 | |
| el. sec.sys. | zone 20 |
| 21区 | |
| el. sec.sys. | zone 21 |
| 22区 | |
| el. sec.sys. | zone 22 |
| 2区 | |
| el. sec.sys. | zone 2 |
| |||
| seawater pollution | |||
| marine fouling | |||
| pollution of seawater; salt-water pollution | |||
| 海水污染: 11 phrases in 4 subjects |
| Earth sciences | 1 |
| Ecology | 1 |
| Oil / petroleum | 2 |
| Technology | 7 |
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