基本解释[商业]全息凹面光栅单色仪英汉例句双语例句This monochromator is specially designed for the F/3 holographic concave grating.此种单色仪专配焦比约为F/3的全息凹面光栅。concave holographic grating monochromator更多例句专业释义商业全息凹面光栅单色仪