ultraviolet rays การใช้

• Sunblock : A product that works by physically blocking the ultraviolet rays.
• Hats, gloves and umbrellas that block ultraviolet rays _ they're all there.
• With proper protection from ultraviolet rays, XP sufferers can live to adulthood.
• Also, when the sun hits watercolors, they fade from the ultraviolet rays.
• But they work only with the sun's ultraviolet rays, limiting their practicality.
• These arcs heat the mercury droplets into vapor that emits ultraviolet rays.
• The lenses, which protect against ultraviolet rays, are round, oblong or square.
• The ozone layer protects people from the sun's most damaging ultraviolet rays.
• Snow blindness occurs due to reflection of ultraviolet rays from snow surface.
• The decal changes color and darkens when exposed to strong ultraviolet rays.
• Other dermatologists may worry about getting melanoma from exposure to ultraviolet rays.
• It protects him from 99 . 9 percent of the sun's ultraviolet rays.
• Laser surgery is not an option since lasers emit ultraviolet rays.
• The granules protect the shingles against the sun's ultraviolet rays and provide color.
• The ozone layer prevents harmful ultraviolet rays from reaching the earth.
• What broke down Equitrack was the ultraviolet rays of the sun.
• Darker-skinned people need to be exposed longer to the ultraviolet rays.
• Have your child wear safe sunglasses, which protect the eyes from ultraviolet rays.
• Nevertheless, tourists should be careful with exposure to solar ultraviolet rays.
• The most energetic ultraviolet rays never get out of the galaxy.