英语语法分析

Brightness level of the road lighting should be of the mesopic vision category.

道路照明中的亮度水平应属中间视觉范畴。

And then indicate that different spectrum in photopic photometry, mesopic photometry, scotopic photometry and circadian photometry.

进而提出不同色光在明视觉光度学、介视觉光度学、暗视觉光度学和日变光度学的光效率。

Therefore, studies on the mesopic vision condition through the reaction time of the road lighting have been the front research topic.

为此，通过反应时间来研究中间视觉条件下的道路照明已成为该学科国际上的前沿研究课题。