动态电压恢复器（DVR）通过向配电系统中串入一个电压源来保障用户端的电压质量。
The principle of Dynamic Voltage Restorer (DVR) is to ensure the customer's power quality with a series voltage source.
此外在所述感性单元和容性单元的串联回路中串入一可调电阻，实现对工作频率阻抗的精细调整。
In addition, an adjustable resistor is connected in series in the series loop of the sensing unit and the inclusive unit to realize the fine regulation to the power frequency impedance.
有一只小蜜蜂像其它的小蜜蜂相同每天拎著小花篮采蜜，每天都在漂亮的花儿中串来串去，勤劳地工作著。
There was a small bee bee the same as any other day carrying a small basket of flowers honey, every day in the beautiful flowers in the string to string, industrious work with.
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