| 单词 | laser |
| 释义 | laser From Longman Dictionary of Contemporary EnglishTechnology, Visual, Physics, Medicine, Industrylaserla‧ser /ˈleɪzə $ -ər/ ●●○ noun [countable]1 Ta piece of equipment that produces a powerful narrow beam of light that can be used in medical operations, to cut metals, or to make patterns of light for entertainmentlaser surgery2 a beam of light produced by a laserOrigin laser (1900-2000) From "light amplification by stimulated emission of radiation" |
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