... 二长花岗斑岩：the east of Qiangtang 二次计量误差：second measurement error 二维均匀分布：two-dimensional uniform distribution ...
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二次计量误差是造成工厂用电计量平衡困难的原因之一。
The secondary measurement error is one of the causes which make difficult for the balance of plant power consumption measurement.
而PT二次压降又是引起电能计量装置综合误差的直接原因之一。
PT secondary voltage step-down is one of the reason which causes the comprehensive error of the electric energy metering equipment.
电能计量综合误差是由电压互感器的合成误差、电流互感器的合成误差、电能表的误差、电压互感器二次导线压降所引起的计量组成。
There exits a compound error problem in the electrical measurement, which is composed of PT synthetic error, ct synthetic error, electrical energy measurement error and secondary potential of PT.
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