free spectral range

例句：

1. 1.The spectrum analyzer can measure the freespectral range of a sample.
   分光计可以测量样品的自由光谱范围。
2. 2. The newsensor has a wide free spectral range forhigh-resolution imaging.
   新型传感器具有宽自由光谱范围，适用于高分辨率成像。
3. 3.The measurement of the free spectral range iscrucial for the quality control of the material.
   自由光谱范围的测量对于材料质量控制至关重要。