sintered cathode

例句：

1. 1. The new cathode is much more efficient than the old one.
   新的阴极比旧的更有效。
2. 2.The research team used a special material to make the cathode.
   研究小组使用了一种特殊的材料来制作阴极。
3. 3.The cathode was made from a rare metal that could only be found in small amounts.
   阴极是由一种稀有金属制成的，这种金属只能以少量存在。