释义 |
laser/ˈleizə/n. a device that generates an intense beam of coherent monochromatic radiation in the infra-red, visible, or ultraviolet region of the electromagnetic spectrum, by stimulated emission of photons from an excited source (cf. 参见 MASER) 激光器(使光子受激发而产生光度极高、单向的、聚合的光束的装置,其光束在电磁光谱中属红外或紫外范围) [acronym from light amplification by stimulated emission of radiation] |