阐述了不平衡电桥法测量电池内阻的原理，给出实验设计，测量结果与电位差计法相比可提高测量精度。
This paper described a principle of determining internal resistance of the battery by imbalance electric bridge, and presented its experiment design.
文章最后进一步探讨了在实际运用中如何平衡各种因素，以取得最优效果的实验设计方案。
Advanced issue on how to get a good balance of these factors and then achieve an optimal research design is also discussed in this paper.
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