电容器容量不能任意变动,个别电容器损坏时,应更换()和()相同产品,并经试验合格方可投入运行。
参考答案:容量;参数
按要求改写句子。
1. Jenny goes to school on Monday. (改为否定句)
_______________________________________________________
2. She eats breakfast at seven. (就划线部分提问)
3. Jenny is combing her hair. (改为一般疑问句)
4. I wake up at 6: 20 in the morning. (改为否定句)
简述劈相机继电器(1DYJ)的作用?