The apparatus is comprising of reactor, mixer, convex glass and ultraviolet light source.
本发明的装置由反应器，搅拌器、凸透镜和紫外光源共同构成。
Through the experiment, it is indicated that regulated direct power makes the light source stable and provides the accurate UV radiation calibration with stable ultraviolet light source.
实验结果表明，带有光反馈的恒压恒流直流电源发光稳定，为精确紫外辐射定标提供了高稳定度的紫外光源。
NO2 is the main source of nitrate aerosols, which form an important fraction of PM2.5 and, in the presence of ultraviolet light, of ozone.
二氧化氮是硝酸盐气溶胶的主要来源，构成PM 2.5和在紫外线下臭氧的主要部分。
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