SPF is based on the quantity of solar exposure.
SPF值根据的是太阳曝光的量。
单词 | solar exposure |
例句 |
原声例句
双语版 TED-Ed 演讲精选 SPF is based on the quantity of solar exposure. SPF值根据的是太阳曝光的量。 经济学人 Science and technology As vitamin D is synthesised in the skin in the presence of certain forms of UV radiation, it is a reliable indicator of solar exposure. 由于维生素 D 是在某些形式的紫外线照射下在皮肤中合成的,因此它是太阳照射的可靠指标。 |
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