This invention relates to a kind of new style high antijamming alternate current / magnetic field sensor, composed by open core's loop and integrating circuit. Two output ports of loop are connect to two input end of compensating type differentiation integral amplifying circuit by wire; the open core's loop has air gap, and symmetrical distribution. connect both end of air gap by non ferromagnetic material with core to form a whole, secondary winding even and reeling on air gap;
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In a symmetrical distribution, values are equally likely to fall above the mean as below it, and the most likely value, the mode, is equal to the mean.
从对称分布来看，分布在中间值上面的与下面的差不多是相等的，最可能的值，即mode，是与中间值相等的。
Distribution of the lesion were diffuse bilaterally and symmetrical.
病变弥漫分布于两肺野，呈对称性；
The nodules are scattered and patchy in distribution, and predominate posteriorly and in the upper lobes. The nodules show symmetrical involvement (Figure 2, Figure 3) of both upper lobes.
结节散在并呈斑片状分布，以上肺和背侧为主，对称性的累及双上肺。
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