调节系统迟缓率
参考答案:
不会引起调节汽阀位置改变的稳态转速变化的总值,以倾定转速的百分率表示。
In a chemical change, energy cannot be created ,____.
A.nor can it be destroyed
B.not it be destroyed
C.so can’t it not be destroyed
D.either it cannot be destoryed
电压互感器投入运行前应检查哪些项目?