field ionization source

例句：

1. 1. Thefield ionization source is crucial forthe operation of the particle accelerator.
   场致离子源对于粒子加速器的运行至关重要。
2. 2. The field ionization source isused to generate high-energy electrons.
   场致离子源用于产生高能电子。
3. 3.The field ionization source is apowerful tool for studying the properties of materials.
   场致离子源是研究材料性质的强大工具。