The electromagnetic coupling of electromagnetic wave to shielding cavity of electronic systems is an important factor of the electromagnetic compatibility prediction and analysis.
空间电磁波对电子设备金属屏蔽腔体的电磁耦合是电子设备电磁兼容性的预测与分析的重要方面。
An analysis for the observation data of the electromagnetic wave of Puyang City was made, the anomalous characters were summarized.
对河南省濮阳市地震台电磁波的观测资料进行了研究，总结了其异常变化特征。
Theory analysis and experiments prove that such tri-state power amplifier has a series of advantages such as: little current wave, slight electromagnetic interference, high efficiency and so on.
理论分析和试验表明，该功率放大器具有电流纹波小、电磁干扰小、效率高等优点。
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