“Great Lakes Water Quality Agreement between the United States and Canada”的概念、定义、翻译、参考文献-科学参考

单词	Great Lakes Water Quality Agreement between the United States and Canada
释义	Great Lakes Water Quality Agreement between the United States and Canada Encyclopedia 历史学加拿大历史释 Great Lakes Water Quality Agreement between the United States and Canada《美加大湖水质协定》 1972年加拿大总理P.E.特鲁多和美国总统R.M.尼克松签署的关于共同治理五大湖水质的协定。
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