The direct current system is an important component of the transformer substation, but its grounding is a common defect.
直流系统是变电站一个重要的组成部分，直流系统接地是常见的缺陷。
Thus, a direct bus current can be detected precisely and an upper harmonics component is inhabited.
由此，高精度地检测直流母线电流，抑制高次谐波成分。
Through controlling the vibration amplitude and direct current component of the driving wave for the varifocal mirror, we can obtain the different depth range.
通过控制变焦镜驱动波的振幅和直流成份，可获得不同的深度范围。
Through controlling the vibration amplitude and direct current component of the driving wave for the varifocal mirror, we can obtain the different depth range.
通过控制变焦镜驱动波的振幅和直流成份，可获得不同的深度范围。
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