Lebesgue zero measure set Lebesgue零测度集
In this instrument the current comparer is set to zero magnetic flux, then the instrument transformer calibrator with the theory of measurement can measure the error of the current transformer.
仪器使电流比较仪处于零磁通工作状态，再利用互感器校验仪的测差原理测试被检电流互感器的误差，从而使互感器校验仪具有比较仪检定功能。
Theorem 1 constructs a set of universal measure zero using continuous extension;
定理1 主要运用了连续延拓构造了一个泛测度零集；
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