resonant line

例句：

1. 1. The resonance line in thespectrum is a critical component of the system's stability.
   频谱中的共振线是系统稳定性的关键组成部分。
2. 2. Theengineer used a resonant line to tune the frequencyof the laser beam.
   工程师使用一个共振线来调谐激光束的频率。
3. 3.The resonant line was used tomeasure the distance between two points on thesurface of the object.
   共振线被用来测量物体表面两点之间的距离。