位移电流的机理只对反向偏压或要维持空间电荷层所需要的非常弱的正向偏压条件下的电容器才有用。

The displacement current mechanism is operative only for capacitors under reverse bias or very weak forward bias conditions which maintain a space-charge layer .

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本文首次将反向传播(BP)神经网络理论应用于13c NMR对1h nmr化学位移值的预测。

The Back Propagation (BP) neural network theory is first used to predict the relation between the data of 1h NMR and 13c NMR.

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