对电压测量来说，理想的输入电流应为零，所以，一切输入电流都代表误差。
With voltage measurements, the input current is ideally zero; thus, any input current represents an error.
第一个调查根据全美人口普查指标，对全国1000个成年人10分钟的在线答卷结果综合得到的，具有全国代表性，误差在正负3.1%内。
The results are nationally representative based on the U.S. Census indicators. The survey margin of error is +/- 3.1%.
气象代表性误差是光电测距的主要误差来源，也是实现精密全站仪标称精度的主要障碍之一。
The meteorological representative error is the main source of EDM error, as well as the main obstruct to realize the nominal accuracy of the precision electronic tachometer also.
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