...ions1997年水品质协会（WQA）出版一本“Ozone for Point-of-Use，绿鹅活氧空气净化器，食品及药物管制局（the FDA），还是需要谨慎处理，但是使用臭氧作为空气净化剂，并没有因为臭氧造成的永久性伤害及死亡的案例报导，是一个很大的市场，必须没...
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The practice is approved by the FDA.
这是FDA批准的。
The FDA never said who it thought was responsible.
FDA从未透露过它认为谁应该承担责任。
Meanwhile, the FDA has also been studying triclosan.
与此同时，FDA已经对三氯沙展开了研究。
The FDA also has approved a man-made form of myelin basic protein to treat this kind of MS.
VOA: special.2009.01.06
The FDA has approved sales of the drug natalizumab to treat people with relapsing forms of MS.
VOA: special.2009.01.06
They say if the FDA approves it for sale, people should be told what they are buying.
VOA: special.2010.10.05
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