钠光谱中的这条线以及其它线的双重性指出预期价电子可用的状态数是双重的。
The doublet nature of this and other lines in the na spectrum indicates a doubling of the expected number of states available to the valence electron.
第一章幻灯片是在,实验室里氦，氦钙以及钠的光谱。
The first slide is a spectrum made in the laboratory of hydrogen, helium and calcium and sodium.
通过对其吸收光谱的研究，证明荧光素钠在乙醇溶液中存在多种互变异构体。
By studying the absorption spectra, we have verified the existence of various tautomers of sodium fluorescein in ethanol solution.
应用推荐