ionization level

例句：

1. 1. The researchers found that the ionization level of the sample had increased significantly.
   研究人员发现样本的离子化水平显著提高。
2. 2. The ionization level is a crucial factor in determining the properties of materials.
   离子化水平是决定材料性质的关键因素。
3. 3. The ionization level of the sample was measured using a high-resolution mass spectrometer.
   样品的离子化水平使用高分辨率质谱仪进行了测量。