If there is a national accreditation to site safety如何理解翻译?

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• If there is a national accreditation to site safety如何理解翻译?
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• 今天china daily上的一篇文章里的几个问题：1Factory owner detained amid additive scare题目如何理解?AMID做何用?2officials with the provincial food safety commission said.这个的with用法也很奇怪?3beverages that were not quarantined after arriving in the province?quarantine查了是隔离检疫,应该翻译成检验吗?
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