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Applications of Lasers Lasers have numerous applications in various fields. / They have made measurement an exact science. /
Applications of Lasers Lasers have numerous applications in various fields. / They have made measurement an exact science. /
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2017-05-09
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Applications of Lasers Lasers have numerous applications in various fields. / They have made measurement an exact science. / Astronomers have used lasers to measure the moon’s distance from Earth to within a few centimeters. / Manufacturers have used lasers for years to cut and join metal parts. / And the jewelry industry uses lasers / to write on the surface of the world’s hardest substance, diamonds. / Lasers have also changed the way we live. / Super-fast Internet connections let people watch movies / and send huge amounts of information at the speed of light. / Laser printers can print out forms and documents quickly and are relatively low in cost. /
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专业英语四级
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