Most of us know that UV rays can harm the skin. That's why we wear sunscreen on our skin before we get out in the sun. But many of us may not realize that UV rays are also harmful to the eyes. If your eyes are exposed to large amounts of UV radiation over a short period of...
But many of us may not real ize that UV rays are also harmful to the eyes.If your eyes are erposed to large amounts of U V radiation over a short period of time, you may er perience a kind of sunburn of the eye, which is har mful. Your eyes will become red and feel a ...
Ultraviolet (UV) rays are considered the harmful rays coming from the sun and other artificial sources like tanning beds and welding tools. UV rays...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answ...
get out in the sun. But many of us may not realize that UV rays are also harmful to the eyes. If your eyes are exposed to large amounts of UV radiation over a short period of time, you may experience a kind of sunburn of the eye, which is harmful. Your eyes will become red and...
Most of us know that UV rays can harm the skin.That's why we wearsunscreenon our skin before we get out in the sun.But many of us may not realize that UV rays are also harmful to the eyes. If your eyes are exposed to large amounts of UV radiation over a short period of time,...
Like visible light,UV rays are energy waves released by the sun,only they cannot been seen. Some exposure (暴露) to those waves can do a body good. For example, ultraviolet B(UV-B)rays tell human skin to make vitamin D. Too much exposure can be harmful, though. Overexposure to UV ra...
(染色)with various colors;each colortint is used to prevent a certain type of light.With coating UV B rays are unable to pass through the lenses T he coating and the special design of the lenses can help greatly toprotect our eyes from harmful rays.Moreover,sunglass lenses are designed ...
The absurdity of open-air treatment: A note on the application of ultra-violet rays in the treatment of tuberculosis and other diseases It is to the ultra-violet rays and to nothing else that the entire success of fresh air treatment has been due. Open air treatment is wrong in principle ...
根据短文内容,从短文后的选项中选出能填入空白处的最佳选项,并在答题卡上将该项涂黑。选项中有两项为多余选项。 Sunglasses are an essential item for everyday use but also for specialized sports and activities.Sunglasses protect the eyes from harmful UV rays(紫外线),which occur even when it is cloud...
For uv - rays are not permeable optical colored glass for the color photography and a method for producing the sameKIJIMA KATSUMIOHNO MASAO