DS8923A驱动器旨在为双绞线或平行线传输线路提供单极性差分驱动。

The DS8923A drivers are designed to provide unipolar differential drive to twisted pair or parallel wire transmission lines.

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电力电缆线路保护区：地下电缆为线路两侧各零点七五米所形成的两平行线内的区域；

Power cable route protection zone: the areas between two parallel lines formed by 0.75 meters on both sides of the ground mark of underground cable route;

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针对电力系统中平行线路的跨线故障，提出一种融合对称分量法与相分量法的大规模电力系统跨线故障计算方法。

In this paper, a method of large scale power system transient Stability evaluation by system decomposition -aggregation and transient energy function method is presented.

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