使用具有四端测量能力的欧姆计，以避免在测量结果中计入引线电阻。
An ohmmeter with four-terminal measurement capability is used to prevent lead resistance from being added to the measurement. The source terminals are connected on either end of the contact pair.
本文采用两种实验方法对比测量可知通常的导线连接其接触点的电阻，并由此进行分析，阐述在双电桥测量低电阻实验中四端扭接法的必要性。
Henceforth, the article analyzes the necessity of the mode of the 4-terminal connection in the experiment of low resistance measurement using the double bridge.
本文采用两种实验方法对比测量可知通常的导线连接其接触点的电阻，并由此进行分析，阐述在双电桥测量低电阻实验中四端扭接法的必要性。
Henceforth, the article analyzes the necessity of the mode of the 4-terminal connection in the experiment of low resistance measurement using the double bridge.
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