selective ionization gauge

例句：

1. 1. The selective ionization gauge is used to measure the concentration of specific elements in a sample.
   选择性离子化测量仪表用于测量样品中特定元素的浓度。
2. 2. In this experiment, we used a selective ionization gauge to detect trace amounts of heavy metals in soil samples.
   在这个实验中，我们使用选择性离子化测量仪表来检测土壤样本中的重金属。
3. 3. The selective ionization gauge was crucial for the accurate analysis of complex mixtures.
   选择性离子化测量仪表对于准确分析复杂混合物至关重要。