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| air quality management Regulate and plan and work toward the accomplishment of completion of stated goals, objectives and mission pertaining to air quality (规范、计划和实施能够实现关于空气质量既定目标与任务。) | |||
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空气质量管理 : 3 phrases in 2 subjects |
| Earth sciences | 1 |
| Environment | 2 |
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