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单词
monochromatic light source
释义
monochromatic light source
Encyclopedia
理学
〔一般光源〕
释
monochromatic light source
单色光源
产生单一频率光的光源。自然界中不存在严格意义上的理想单色光，因为它要求是一个无限长时间的等幅正弦（或余弦）振荡的电磁波。因此，通常说的单色光源实际发出的都只是准单色光，即光谱线型半高宽与中心波长的比值很小，它很接近单色，习惯上就把这类光源称为单色光源。
Physics
光学、声学
光学
monochromatic [light] source
单色光源
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