ultraviolet A长波紫外线ultravioletadj.紫外线的n.紫外线ultraviolet light vacuum gauge紫外线真空计ultraviolet light sensing tube紫外光敏管ultraviolet absorption spectra紫外线吸收光谱ultraviolet ionization chamber紫外电离室ultraviolet light disinfection紫外线消毒ultraviolet absorption maximum最大紫外吸收ultraviolet-visible detector紫外-可见光检测器ultraviolet absorbing compound紫外吸收物ultraviolet fluorescence meter紫外线荧光仪ultraviolet laser communication紫外激光通信