Children should have glasses which filter out UV rays.
孩子们应该佩戴可以滤除紫外线的眼镜。
A special material on the surface receives UV light from the sun.
表面的一种特殊材料接收来自太阳的紫外线。
Tenith Adithyaa, a teenager from India, used UV to make the leaves stay fresh for a year.
来自印度的青少年Tenith Adithyaa利用紫外线使这些叶子保持新鲜一年。
The absence of oxygen on other planets means that those planets lack an ozone shield to protect life forms against UV radiation.
其他行星上没有氧气，这意味着这些行星缺乏保护生命体免受紫外线辐射的臭氧层。
Complex life evolved on the Earth's surface, but not on Mars or other planets in the solar system because on those planets, early surface life was killed by UV radiation.
复杂的生命在地球表面进化，而不是在火星或太阳系的其他行星上，因为在那些行星上，早期的地表生命被紫外线杀死了。
The absence of an oxygen atmosphere on Mars and other planets in our solar system means that these planets also lack an ozone shield that would protect surface-dwelling life from UV radiation.
在火星和我们太阳系的其他行星上没有氧气，这意味着这些行星也缺乏保护地表生物免受紫外线辐射的臭氧层。
The properties of nanosilica modified UV-coatings were investigated.
考察了纳米二氧化硅掺杂的紫外光固化涂料的性能。
They also absorb strongly in the UV-C, suggests that they might have originally acted as antenna pigments.
它们对 C 类紫外光中也有很强的吸收能力，这表明它们最初可能是天线色素。
The UV spectrum most resembled that of the aromatic tropylium ion.
紫外光谱与芳香族对苯二酚离子的光谱最相似。
The Ergative Hypothesis distinguishes one of the classes of intransitive verbs—unergative verbs (UV).
格律性假设区分了一类不及物动词的——非作格动词（UV）。
The change of antioxidant enzyme activity in Skeletonema costatum, Heterosigma akashiwo and Alexandrium tamarense under UV-B radiation enhancement were studied.
研究了赤潮异弯藻、亚历山大藻和中肋骨条藻抗氧化酶活性对UV-B辐射增强的响应变化。
What they found was that reindeer do indeed have UV vision.
他们的发现是，驯鹿确实可以看到紫外线。
The sun's emissions of UV light are not uniform, so as it rotates UV-bright regions move in and out of view of Earth.
太阳所发出的紫外光是不统一的，所以由于太阳的自转地球所吸收的紫外光的数量也就不同。
There is also evidence that UV radiation reduces the effectiveness of the immune system.
还有证据表明，紫外线辐射可降低免疫系统的有效性。
Children and adolescents are particularly vulnerable to the harmful effects of UV radiation.
儿童和青少年特别容易受到紫外线辐射的有害影响。
Exposure to UV rays can mutate your cells and cause cancer.
暴露在紫外光下会使你的细胞突变，引起癌症。
Ozone: ozone absorbs some of the UV radiation from the sun.
臭氧：臭氧吸收一些太阳紫外线辐射。
Studies have shown that some lightweight fabrics do not provide enough UV protection.
研究表明某些轻质衣服不具备足够的防紫外线功能。
The UV index (UVI) is the international standard for UV measurement, developed by WHO, the United Nations Environment Program and the World Meteorological Organization.
紫外线指数是由世卫组织、联合国环境规划署和世界气象组织共同制定的紫外线测量国际标准。
Altitude: UV levels increase by about 5% with every 1000 metres altitude.
海拔高度：海拔高度每升高1000米，紫外线辐射强度增加约5%。
This means it helps protect skin from the damaging effects of UV rays.
这意味着它能帮助预防皮肤受到紫外线的侵害。
Under UV light, clean sand appears purple or black.
紫外线照射下，干净的沙子呈紫色或黑色。
Overexposure to ultraviolet ( UV) radiation, such as from sunlight, tanning booths, or sunlamps.
过度暴露于紫外线（UV）辐射下，如阳光，晒黑机，或日光灯。
Melanin has an extremely important role- it absorbs UV light and dissipates the UV rays as heat.
黑素有着很重要的作用——它可以吸收紫外线，并可以像释放热量一样驱散紫外线。
When the UV Index is moderate or above, sun protection is required.
当紫外线指数属于中度或更高时，就需要采取防晒措施。
We recommend UV protected clothing and this is the very opposite.
我们建议人们穿防紫外线的衣服，而这恰恰相反。
留意紫外线指数。
Between 50% and 90% of skin cancers are due to UV radiation.
50%至90%的皮肤癌是由紫外线辐射造成的。
The prototype camera model Fergus chose could already detect UV, but getting the camera to send UV light was a little trickier.
费格斯选取的模型机型号原本就能探测到紫外线，但是要使照相机能够发送紫外线就有点难办了。
Latitude: the closer to the equator, the higher the UV radiation levels.
纬度：越接近赤道，紫外线辐射水平就越高。
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