GB/T 3930-1983 in English

《GB/T 3930-1983测量电阻用直流电桥》由TC104（全国电工仪器仪表标准化技术委员会）归口，TC104SC3（全国电工仪器仪表标准化技术委员会交直流仪器、测量电源装置、记录仪表分会）执行，主管部门为中国机械工业联合会。
本标准适用于测量电阻用的直流电桥，也适用于电桥的内附辅助设备。本标准不适用于电桥比较器，自动平衡电桥以及那些借指零仪刻度来获得部分示值的电桥，也不适用于和电桥一起使用的外部辅助设备。

Scope

This standard applies to DC bridges used for measuring resistance, and also to auxiliary equipment attached to bridges. This standard does not apply to bridge comparators, self-balancing bridges and those bridges that obtain partial indications by means of a zero meter scale, nor does it apply to external auxiliary equipment used with bridges (Note: bridge comparators is a device used to compare two resistors, e.g. an adjustable ratio group with two arms).