To lower the operation frequency I use fixed capacitors in parallel with the variable capacitor.
为了降低操作频率，我用固定电容器，可变电容器并联。
The electric control unit USES variable frequency step-less speed regulation for easy operation, operation panel is simple and clear.
本机的电气控制采用变频无级调速，操作方便、直观，操作面板简洁、明了。
The electric control uses variable frequency step-less speed regulation for easy operation. Operation panel is simple and clear.
本机的电气控制采用变频无级调速，操作方便、直观，操作面板简洁、明了。
This article describes the operation principle and circuit scheme of a sort of three-phase combined variable voltage and variable frequency power supply.
提出了一种组合式三相变压变频电源的工作原理和电路结构。
Simulation research has been taken for its operation performance and the result indicated that BDFM was very suitable for the use of variable frequency adjusting speed.
然后简要分析了无刷双馈电机的基本原理，并对其运行特性进行了仿真研究，结果表明无刷双馈电机非常适合作为变频调速用电机。
Abstract: This paper introduces a voltage-variable and frequency-variable high voltage power supply using IPM. The operation principle is discussed in detail.
摘要：介绍了一种采用智能功率模块的调压调频高压电源，详述了其工作原理。
Full-automatic box folding-gluing machine features stable performance, simple operation, and adopts control by imported variable frequency counter, to achieve stable, accurate and quick production.
全自动糊盒机系列具有性能稳定，操作简单，采用进口变频计数控制，达到稳、准、快的目的。
XFG the second generation of new products with variable frequency technology, digital display, adjust the precise, reliable operation and so on.
XFG第二代新产品具有变频技术，数字显示，调整精确，运转可靠等特点。
XFG the second generation of new products with variable frequency technology, digital display, adjust the precise, reliable operation and so on.
XFG第二代新产品具有变频技术，数字显示，调整精确，运转可靠等特点。
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