double focusing mass spectrometer

例句：

1. 1.This double focusing mass spectrometer can analyze the chemical composition of complex samples with high precision.
   这台双聚焦质谱仪可以以高精度分析复杂样品的化学成分。
2. 2. The double focusing mass spectrometer is widely used in the analysis of biological molecules and environmental pollutants.
   双聚焦质谱仪在生物分子分析和环境污染物分析中广泛应用。
3. 3. The double focusing mass spectrometer has greatly improved our ability to detect and analyze complex samples.
   双聚焦质谱仪极大地提高了我们检测和分析复杂样品的能力。