thoriated tungsten cathode

例句：

1. 1. The new cathode has a higher efficiency than the old one.
   新型阴极的效率比旧的更高。
2. 2.The research team is using this cathode to improve the quality of their products.
   研究小组正在使用这种阴极来提高他们产品的质量。
3. 3. The cathode is crucial for the operation of the power plant.
   阴极对于发电厂的运行至关重要。