This method can detect all kinds of hidden defect type of the solar cells.

该方法可以检测出正向偏压下电池存在的各种缺陷类型。

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In the experiments, the symmetric and antisymmetric modes, S1 and A1, were excited to detect hidden corrosion defect respectively using pitch-catch technique.

实验中，采用了一发一收法，并分别激励了对称模态s1和反对称模态A 1对该缺陷进行了检测。

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The status of power supply enterprises is completely evaluated, in order to find hidden security problem ahead of time, correct the defect and consolidate the foundation of producing security in time.

对供电企业安全生产基础状况进行全面的安全性评价，旨在达到超前发现和控制存在问题，及时整改存在的缺陷，不断夯实安全生产基础的目的。

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