high impedance NMR spectrometer

例句：

1. 1.The high-impedance NMR spectrometer is used to analyze the molecular structure of organic compounds.
   高阻抗核磁共振光谱仪用于分析有机化合物的分子结构。
2. 2.The high-impedance NMR spectrometer was used to study the chemical properties of different types of metals.
   高阻抗核磁共振光谱仪被用来研究不同类型金属的化学性质。
3. 3.The high-impedance NMR spectrometer has become a valuable tool for researchers in the field of materials science.
   高阻抗核磁共振光谱仪已成为材料科学领域研究人员的一项宝贵工具。