The ozone layer shields the earth from the sun's ultraviolet rays.
臭氧层保护地球不受太阳紫外线的辐射。
The sun's ultraviolet rays are responsible for both tanning and burning.
太阳的紫外线是皮肤晒黑和晒伤的原因。
Heat, too, makes our environments tolerable and some ultraviolet rays penetrate the atmosphere.
热也使我们的环境变得适宜生存，而且一些紫外线会穿透大气层。
For example, sunglasses are not just for fashion but they can also serve as a great way to protect your eyesight from ultraviolet rays.
例如，太阳镜不仅仅是为了时尚，也是保护视力免受紫外线伤害的好方法。
They can protect your eyes from ultraviolet rays.
它们可以保护你的眼睛不受紫外线的伤害啊。
它被叫做紫外线。
What are infrared and ultraviolet rays?
什么是红外线和紫外线？
Gucci: Sure. They can protect your eyes from ultraviolet rays.
古奇：当然有啊。它们可以保护你的眼睛不受紫外线的伤害啊。
The ozone layer protects life on Earth from harmful ultraviolet rays.
臭氧层可以保护地球上的生物免受有害紫外线的辐射。
Tests also found that both the red and orange pigments collect ultraviolet rays.
实验还发现红色和桔色的色素都能够吸收紫外线。
It takes more than sunscreen to keep the sun's ultraviolet rays from harming your skin.
防止太阳光中紫外线对皮肤的伤害，除了防晒霜，还有其他保护方法。
But the amount of ultraviolet rays reaching the Earth varies by location and season.
但到达地球表面的紫外线量受制于地区和季节的变化。
The ozone layer surrounding the earth protects our skin from being hurt by the ultraviolet rays.
环绕地球的臭氧层保护着我们的皮肤免受紫外线的伤害。
Ozone is best known for its role in screening the Earth from harmful ultraviolet rays from the Sun.
臭氧最广为人知的作用是保护地球免受太阳紫外线的伤害。
The electronic disinfector tested kills bacteria by synergetic action of ozone and ultraviolet rays.
所测电子消毒柜，以臭氧与紫外线协同作用杀菌。
The boys could not be exposed to any ultraviolet rays, or they ran the risk of almost certain skin cancer.
两个孩子不能照射任何的紫外线光，否则他们极容易患上皮肤癌。
Harmful ultraviolet rays from the sun are directly linked to melanoma and other forms of skin cancer.
来自太阳的有害的紫外线与黑色素瘤以及其它皮肤癌有关。
The risk increases in summer because ultraviolet rays from the sun are the main cause of skin cancer.
因为太阳紫外线是皮肤癌的主要致病原因，所以夏天得皮肤癌的风险增加了。
Some FDA standards were developed for ultraviolet rays known as UVB, but the new rules deal with UVA rays.
FDA已经制定了防晒霜的一些关于紫外线中uvb的标准，但是，新标准是针对uva的。
Methods By using complex mutagenesis of LiCl and ultraviolet rays, we deal with the simple spore suspension.
方法采用氯化锂和紫外线复合诱变单孢子悬浮液。
The thermosphere, which blocks harmful ultraviolet rays, expands and contracts regularly due to the sun's activities.
由于太阳的活动，阻挡有害紫外线的热大气层会定期扩张和收缩。
Model ZQJ-254 ultraviolet Intensity meter can measure the radiation dose of ultraviolet rays in the various enviroment.
254紫外线强度检测仪能测量各种环境中的紫外线辐照剂量。
For instance, plastics have a known weakness to ultraviolet rays from the sun, and so long exposure might represent an issue.
例如，塑料有一个缺陷，不能长期暴露于太阳紫外线的照射中。
Researchers believe that these growths are caused in part by long-term exposure to the ultraviolet rays contained in sunlight.
研究者们认为，造成这种增生的一部分原因是长期地暴露于阳光中的紫外线下。
The strong ultraviolet rays of the plateau sun shone on their heads as they walked towards a small town called Gaomiaozi.
他们顶着高原上紫外线强烈的阳光，朝一个名叫高庙子的小镇走去。
Because ultraviolet rays also trigger the synthesis of vitamin D in the skin, sunlight is an important source of the vitamin.
由于紫外线也可以触发皮肤中维生素d的合成，因此日晒是维生素d的一个重要来源。
Clothing does protect the skin against the sun's harmful ultraviolet rays, but not all clothing provides the same protection.
衣服可以保护皮肤免受阳光中有害的紫外线照射，不过并不是所有的衣服都可以提供这种保护。
Increased solar activity will allow more ultraviolet rays to reach earth, that can warm the relatively colder upper atmosphere.
太阳活动增加将使更多的紫外线到达地球，紫外线能使相对较冷的上层大气变暖。
Calculations suggest, for instance, that in the nucleus of the isotope thorium-229 is a transition that should emit ultraviolet rays.
举例来说，计算表明，钍- 229的原子核内存在着能发出紫外线的转变过程。
Calculations suggest, for instance, that in the nucleus of the isotope thorium-229 is a transition that should emit ultraviolet rays.
举例来说，计算表明，钍- 229的原子核内存在着能发出紫外线的转变过程。
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