吸收峰相对中心波长有时出现红移，有时出现蓝移的翻译：Center wavelength absorption peaks are sometimes appeared red shift, sometimes blue-shift 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

Absorption peak red-shifted relative to the center wavelength sometimes, and sometimes a blue shift

Center wavelength absorption peaks are sometimes appeared red shift, sometimes blue-shift

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absorption peak wavelength sometimes appears relatively Center red shifts, sometimes in blue migration

Center wavelength absorption peaks are sometimes appeared red shift, sometimes blue-shift