【简答题】除同步发电机外,专门用于产生无功功率的同步电机,称为 。
【单选题】Choose the correct answer according to the Chinese. 警察设了路障 。 The police put a _______ across the road.
【判断题】发电机的转子带动电枢磁场以同一转速旋转,两者之间保持同步,故称为同步发电机。()
【单选题】The police put a ______across the road
【单选题】The police put the criminal ________.
【单选题】供给同步发电机()直流励磁电流电源的方式称为同步发电机的励磁方式。
【单选题】What kind of charges will the police put against Potters daughter?
A.
Damaging public property.
B.
Running away to avoid arrest.
C.
Reckless driving without a license.
D.
Endangering passengers' life.
【简答题】同步发电机的磁场一般由一个直流电磁场来提供,这个直流电流称为同步发电机的( )电流,又称转子电流。