This one in Washington DC yesterday was a wrapping up of a three-week tour across the U. s.
昨天在华盛顿特区的这次是为期三周美国之旅的结束。
Because in U-I model flux observation pure integration element is adopted, it brings about two problems of DC drift error and initial integration error.
考虑到U - I模型磁链观测器含有纯积分电路，会带来两个问题：一是直流漂移误差，二是积分初值误差。
The U. S. high court says 32-year-old Washington, DC gun ban is unconstitutional.
美国高等法院说，今年32岁，华盛顿特区枪禁令是违宪的。
U - sed in DC or pulse circuits of electrical instruments, such as TV, radio, electronics instruments etc.
适用于电视机、收音机、电子仪器等各种直流和脉冲电路中。
U - sed in DC or pulse circuits of electrical instruments, such as TV, radio, electronics instruments etc.
适用于电视机、收音机、电子仪器等各种直流和脉冲电路中。
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