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normes d'environnement | |||
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norme environnementale | |||
norme d'environnement; norme de qualité |
environmental standards : 16 phrases in 6 subjects |
Economy | 1 |
Environment | 10 |
Law | 2 |
Natural resourses and wildlife conservation | 1 |
Planning | 1 |
United Nations | 1 |