n.多普勒效应
Moreover, since the atoms are in random thermal motion the frequency spectrum will be altered by the Doppler effect. 而且，由于原子是在作无规则热运动，多普勒效应也会使频谱发生改变。
To measurte temperature of gas discharge plasma with Doppler effect by using spectrum diagnosis. 讨论了用多普勒效应测量气体放电等离子体温度的光谱诊断方法。
