One suitable definition of significant figure is introduced and the reasonable data treatment result in measuring resistance with voltmeter-ammeter method is obtained.
本文介绍了一种较具适用性的有效数字的定义，并给出了伏安法测电阻时数据处理的合理结果。
Ammeter, voltmeter, bridge and similar common methods are typical equipment types.
电流表、电压表、电桥以及类似的常见仪器都属于常用的设备。
When an unknown signal is connected to a measuring device, such as a voltmeter or ammeter, the measurement accuracy is almost entirely determined by the measuring device.
当一个未知的信号被连接到测量装置时，例如伏特计或安培表，测量准确度则几乎完全由测量装置决定。
When the electric voltage and current are measured with voltmeter and ammeter, certain measuring errors could occur due to the inherent resistance.
在实际使用电压表、电流表测量电压、电流时，因测量仪表的内阻会产生一定的测量误差。
It is convenient to include the functions of a voltmeter, ammeter, and ohmmeter within one instrument.
人们把伏特表，安培表，欧姆表集中在一只仪表内是非常方便的。
Test and mark the resistance value of the old elements having been replaced (with voltmeter and ammeter) and distribute them in low temperature area.
换下来的元件重新（用压表、电流表）测标其电阻值，配阻用在低温区。
Inside is arranged ammeter, voltmeter, air circuit breaker, indicator, ac contactor, conversion switch, and buttons for starting or stopping.
柜内还装有电流表、电压表、自动空气开关、指示灯、交流接触器、工频变频转换开关及起动、停止按钮等。
Ranges of ammeter and voltmeter are decided by users;
电流表及电压表量程由用户确定。
Ranges of ammeter and voltmeter are decided by users;
电流表及电压表量程由用户确定。
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