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1. | a natural environment |
| 自然环境 |
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2. | natural environment rehabilitation |
| 自然环境复原;恢复自然环境 |
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3. | benthic natural environment |
| 海底自然环境 |
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4. | man's physical environment |
| 人类的自然环境 |
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5. | natural environment deterioration |
| 自然环境恶化 |
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6. | factor of natural environment |
| 自然环境因素 |
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7. | natural environmental carcinogen |
| 自然环境致癌物 |
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8. | Natural Environmental Conservation act |
| 自然环境保护法 |
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9. | natural environment map |
| 自然环境图 |
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10. | Natural Environment Research Council |
| 自然环境研究理事会 |
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