spectral line shift

例句：

1. 1. The spectral line shift in the spectrum is due to the presence of a foreign element.
   光谱中的谱线位移是由于外来元素的存在。
2. 2. The spectral line shift can be used to determine the temperature of the object.
   光谱线位移可以用来确定物体的温度。
3. 3. The spectral line shift was caused by the interaction between the two particles.
   光谱线位移是由两个粒子之间的相互作用引起的。