Santa fe is one of only 20 U.S. cities the ALA looked at with consistently safe ozone levels.

圣达菲是美国汽车法律协会(ALA)观察的臭氧水平一贯在安全范围的20个城市中唯一的一个。

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Conclusions fe Compound Enzyme was a safe and effective drug for controlling the local infection of acute apical periodontitis.

结论FE复合酶是一种安全、有效的控制急性根尖周炎的局部使用药物。

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The results showed that it is rich of trace elements such as Fe, Mn, Mg and Zn in bedding and the bedding meets the secondary standard of organic fertilizer, the pig-on-litter bedding is safe.

结果表明：生物床养猪垫料中含有丰富的铁、锰、镁、锌等微量元素，结合全国有机肥料品质要素分级标准，综合评定生物床养猪垫料符合二级有机肥的标准，生物床养猪垫料安全达标。

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