cold-cathode tube

例句：

1. 1. The cold-cathode tube is a crucial component in the electronics industry.
   阴极管是电子行业的关键部件。
2. 2. The cold-cathode tube was used to generate ultraviolet light for medical treatments.
   阴极管用于生成紫外线以进行医疗治疗。
3. 3. The cold-cathode tube has been replaced by more efficient alternatives in recent years.
   近年来，阴极管已被更高效的替代品所取代。