问题
问答题 简答题
什么是脉冲供电控制方式?
答案
参考答案:
通过对电压给定环节的有效控制,使输出的高压波形发生间隙性变化,克服反电晕。
什么是脉冲供电控制方式?
参考答案:
通过对电压给定环节的有效控制,使输出的高压波形发生间隙性变化,克服反电晕。
选择方框里的词的正确形式填空,每词只用一次。 | |
2. There are many __________ over there. I want to talk with them. 3. Two __________ of the students in our class are boys. 4. I succeeded in __________ that job. 5. Today. We made our __________ to the class. 6. Everyone in our class __________ our English teacher. 7. Danny has __________ of a new kind of fuel. 8. To make a candle __________ you "light" it. 9. The houses are __________ with heavy snow. 10. They give prizes to the classes that make the __________ garbage! |