monochromatic beam单色: monocolour; monochromatic射束: beam晶体反射单色射束: crystal-reflected monochromatic单色射线: monochromatic gamma rays; monochromatic rays彩色射束分离棱镜, 彩色分光棱镜: colour beam splitting prism下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:单色射束,即可在微信中查询翻译