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彭汉勇
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Google了一下,加拿大有下面这个标准,供参考
https://www.canada.ca/en/health-canada/services/publications/healthy-living/guidelines-canadian-recreational-water-quality-third-edition.html
另外如您在文中所提到的,尿素在汗液里也有,如何作为尿液的指示剂
2017-03-24 09:14
https://www.canada.ca/en/health-canada/services/publications/healthy-living/guidelines-canadian-recreational-water-quality-third-edition.html
另外如您在文中所提到的,尿素在汗液里也有,如何作为尿液的指示剂
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