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| 臭氧消耗潜能值 | |||
| 臭氧消耗趋势 | |||
| 臭氧消耗潜力 | |||
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| 臭氧消耗潜能值 | |||
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ozone depleting potential : 2 phrases in 2 subjects |
| Technology | 1 |
| United Nations | 1 |
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