问题
问答题 简答题
发电机励磁电流的作用？
答案
参考答案：
建立稳恒的磁场，在汽轮机的带动下，形成旋转磁场。
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发电机励磁电流的作用？
参考答案：
建立稳恒的磁场，在汽轮机的带动下，形成旋转磁场。
| 用方框中所给词或短语的适当形式填空 | |
2. It's a fine day today.Let's ____together. 3. Mr.Zhang enjoys____around the world because he likes foreign culture. 4. —What's Mike doing at the moment? —He is taking____for his parents. 5. —What are you going to do at the weekend,Daming? —I am going to____for my test. |