英语释义

1. sun protection factor

2. a number assigned to a sunscreen that is the factor by which the time required for unprotected skin to become sunburned is increased when the sunscreen is used — called also sun protection factor

片语

Constrained SPF约束最短路径优先

DGunners SPF毁灭枪手SP

SPF Index防晒系数

SPF tree最短路径树

SPF PA防晒乳

SPF动物SPF Animal

spf boostingsytem持体系

英汉例句

• Manufacturers calculate SPF based on how long it takes to sunburn skin that「s been treated with the sunscreen as compared with skin that hasn」t been treated with sunscreen.

  生产商计算该系数是基于在涂抹了防晒霜和没抹防晒霜的这两种情况下，对皮肤晒红的时间进行的对比。

• Of course, you should look for one with SPF protection to keep the sun from aging your lips even more!

  当然，你应该找有SPF保持的一种将能够进一步阻挡阳光对你唇部的衰老。

• Every girl wants to have snow-white skin, so high SPF sunblock is a must-have in the summer.

  每个女孩都希望有雪白的肌肤，所以高防晒系数的防晒乳可是夏日必备圣品。

• Simply applying SPF 30 or higher sunscreen and bug repellent will be sufficient to rid yourself of these pests.

  让你的防晒系数达到30或是更高，买些驱虫剂足够让你拜托这些麻烦。

• Survey respondents said they were aware that sunscreens with higher SPF afforded greater protection, and sunscreens past their expiration dates should not be used.

  被调查者称，他们知道SPF值更高的防晒霜能提供更多保护，而且不能使用已过保质期的防晒霜。

• In general, look for water-resistant, broad-spectrum coverage with an appropriate SPF - at least 15. Check the expiration date, and follow the directions on the label.

  总体上，选择防水、适当的防晒系数(至少为15)的广谱防晒霜。记得查看有效期，并且按照标签上的说明来使用。

• A sunscreen with an SPF of 60 might be better than one with an SPF of 30, but not necessarily - and the SPF 60 product isn「t likely to be twice as effective as the SPF 30 product.

  防晒系数为60的防晒霜可能会比防晒系数只有30的要好，但这也没有必要，而且防晒系数为60的防晒产品所达到的效果并不是防晒系数为30的两倍。

• Some products of name-brands selling in the Chinese market, such as Aupres, Avon, Doctor Li and Ponds, have been found with SPF values less than half the values claimed.

  欧珀莱、雅芳、李医生、旁氏等品牌的部分产品出现了SPF实测值不足标称值一半的情况。

• Except that a couple of the originals have disappeared from sale, apparently unable to provide sufficient SPF without help from man-made chemicals.

  现在，有几种天然防晒成分已经买不到了，而只用人工合成化学物质显然是没法达到足够的防晒指数的。

• Did you know that tan skin has an SPF of only 2-4? Obviously not worth damaging our skin when it」s recommended that we get no less than 15 SPF.

  你知道吗，即便是经过日光浴后的古铜色肌肤含有的防晒指数只有2~4，很显然不值得用它来损害我们的皮肤，尽管它号称会获得不低于15的防晒指数。

• An SPF 30 gives you 30 times your natural protection, and deflects 97 percent of the sun「s burning rays, whereas SPF 15 deflects 93 percent.

  防晒因子30能让你比只依赖你的天然防护系统多呆30倍的时间，也就是阻挡97%的紫外线，而防晒因子15则能阻挡93%。

• The lycopene in tomatoes actlike a sunscreen; eating them cooked can quadruple the SPF in your skin. Andthe polyphenols in tomatoes thin your blood naturally, so they’re good for yourheart.

  番茄红素还可起到防晒霜的功效，食用煮熟的番茄可成倍提高皮肤的SPF（防晒指数）值，并可稀释血液而有利于心脏。

• He suggests choosing a broad-spectrum sunscreen, which blocks both types of UV rays, UVA and UVB, with an SPF of at least 30.

  选择一款能够阻挡UVA和UVB两种射线的广谱防晒产品吧，切记SPF值要至少达到30以上。

• 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。

• All this can make even the best sunscreen less effective than the SPF number on the bottle would lead you to believe.

  所有的这一切都会使得最好的防晒霜的防晒效果低于它瓶子上标的防晒系数。

• People with Type 3 or 4, like me, as well as the 5 and 6」s should wear SPF 15 outside and seek the shade between 10 a.m. and 4 p.m.

  像我这样属于第3型或第4型的人，以及第5型和第6型的人，在上午10点至下午4点外出时应涂上SPF15的防晒霜并寻找遮荫处。