double-beam far-infrared Fourier spectrometer

例句：

1. 1.The double-beam spectrometer can analyze the chemical composition of samples with high accuracy.
   双光束光谱仪可以以高精度分析样品的化学成分。
2. 2. The double-beam spectrometer is widely used in scientific research and industrial production.
   双光束光谱仪在科学研究和工业生产中广泛应用。
3. 3. In the double-beam spectrometer, two beams of light are directed onto the sample, allowing for precise measurement of the sample's properties.
   在双光束光谱仪中，两束光线被引导到样品上，允许对样品的性质进行精确测量。