Used properly, sunscreens with an SPF of 8 or higher completely block UVB radiation and prevent synthesis of vitamin d.

使用得当的防晒系数为8或更高的防晒霜在完全阻挡紫外线辐射的同时也阻止了维生素d的合成。

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The graduation synthesis topic link is a higher vocational education important constituent, is the higher occupation application technology talented person raise key practice link.

毕业综合课题环节是高职教育的一个重要组成部分，是高职应用性技术人才培养的关键实践环节。

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In higher plants, the regulation of sucrose synthesis, transport and distribution represents a complex process.

在高等植物中，蔗糖的合成、运输与分配是一个复杂的过程。

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Higher Criticism had shown that the Old Testament was not dictated solely by figures like Moses but was the synthesis of many cultures and traditions.

FORBES: Bard En Garde: Jousting With The Doubters