Each and every idle loss ratio has been checked against actual measurement for accuracy and effectiveness in identifying local defects in windings and cores of transformers.

并结合实际测量数据，详细分析了单相空载损耗比对发现变压器线圈和铁心局部缺陷的准确性和有效性。

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If its actual loss ratio drops below 40 percent in the preceding year, it must refile to raise it.

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