septometer

例句：

1. 1. The physicist used a septometer to measure the wavelength of light.
   物理学家使用分光仪测量光的波长。
2. 2. The scientist conducted an experiment using a septometer to study the properties of matter.
   科学家使用分光仪进行实验，研究物质的性质。
3. 3. The engineer used a septometer to inspect the quality of the metal welding.
   工程师使用分光仪检查金属焊接的质量。