目的：对当前主流的药房分流系统进行优化。
Objective To optimize the current mainstream pharmacy diversion system.
当前主流的采样算法往往考虑选取的样例尽可能平分版本空间。
Currently, the leading methods of sampling generally choose the instance or instances that can reduce the version space by half.
文中总结了当前主流的谐波检测方法，提出了一种用于谐波和无功准确检测的改进同步坐标系法。
The dominant harmonic detecting method is summarized in this paper and a modified technique based on synchronous reference is proposed for accurate harmonic and reactive current detection.
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