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耗氧物质 : 29 phrases in 10 subjects |
| China | 2 |
| Earth sciences | 1 |
| Ecology | 1 |
| Electronics | 1 |
| Environment | 2 |
| Nautical | 2 |
| Polymers | 1 |
| Refrigeration | 2 |
| Technology | 7 |
| United Nations | 10 |
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