1)natrium-source lamp,钠光灯2)sodium vapor lamp,"钠蒸气灯,钠光灯"3)vapor-discharge,tube,蒸汽排出管(水银灯水银蒸汽或钠光灯钠蒸汽管)4)light of sodium,钠光5)double line of natrium,钠光双线6)light wave length of sodium,钠光波长
用法例句
The resolving power of the aetual grating system is verified by observing the double line of natrium in the experiment of diffraction grating.
