Research results show that when the output of voltage regulator is the maximum value, the voltage transient stability marginofpower system does not achieve its maximum;
仿真结果表明，当电压调节器的输出电压为最大值时，系统电压暂态稳定裕度没有达到最大；
2
Meanwhile, the shortage of capacity means that its marginof excess power has been shrinking for 20 years.
同时，产量的缺少也意味着20年来其过量能量的边际效应一直在缩小。
3
Buying Power Amount of money available in a margin account to buy securities based on excess margin divided by the margin requirement.