ultraviolet region

The space observation in soft x-ray and extreme ultraviolet ( EUV) region is an important portion of the space astronomy and an effective solar observation method developed increasingly.

随着空间技术和短波光学技术的发展，空间软X射线&极紫外波段观测研究逐渐成为空间天文学研究的重要组成部分，尤其是在这一波段的空间对日观测已成为天文学研究的重点。

A series of measurements showed that the experimental error of the direct spectrophotometric determinations in the ultraviolet region was less than 2% whereas that for the diphenyl thiocarbazone method was about 5%.

依靠紫外吸收的测定方法比较准确，测定误差可在2%以内，而用双硫腙间接测定误差约在5%左右。

In this paper, the application of sun blind region ultraviolet spectrum in short range cryptical communication is discussed, and an experimental system of ultraviolet communication is constructed.

本文对紫外日盲区光谱在近距离、保密通信中的应用进行了探讨，并建立了紫外光学通信原理实验系统。

Electromagnetic radiation with frequencies in the ultraviolet and visible region can be absorbed by molecules.

分子能吸收频率在紫外和可见光区的电磁辐射.

Intensity calibration of monochromators in vacuum ultraviolet wavelength region by atomic branching ratio method

利用分支比方法作真空紫外光谱仪的强度校准