cathode flame

例句：

1. 1.The cathode flame is a powerful tool for analyzing the properties of materials.
   阴极火焰是分析材料性质的一种强大工具。
2. 2.During the experiment, the cathode flame illuminated the entire room.
   实验过程中，阴极火焰照亮了整个房间。
3. 3.The cathode flame was used to detect the presence of certain chemicals in the sample.
   阴极火焰被用来检测样本中某些化学物质的存在。