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| environmentally benign | |||
| environmentally sound | |||
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环 境无害 : 43 phrases in 7 subjects |
| Earth sciences | 1 |
| Ecology | 8 |
| Economy | 1 |
| Name of organization | 2 |
| Nautical | 5 |
| Technology | 5 |
| United Nations | 21 |
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