In the end, the network reliabilities considering voltage sags and protective relays or not are compared.最后比较了计及电压暂降和保护性能前后的配电网可靠性指标变化.This article describes examples to upgrade introduced power turbine so as to further ...
...his ungracious behaviour during the Queen's recent visit...女王最近到访期间他的不得体行为I was often rude and ungracious in refusing help.我拒绝接受帮助的时候时常显得粗鲁无礼。It is ungracious of me not to acknowledge your help.你大力帮助而我尚未表示谢意,十分失礼...