英语词汇“achromatic lens”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	achromatic lens
释义	achromatic lens noun : a compound lens made by combining lenses of different material (as flint glass and crown glass) having different focal powers, the light that emerges from the lens forming images practically free from prismatic colors
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