The selection of the insulator applied for a large power very low frequency transmitting antenna were studied.

本文对大功率甚低频发射天线用绝缘子的选型进行了研究。

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Multi - frequency transmitting technology is one of the most important measures to improve efficiency for active electromagnetic method.

多频发射技术是主动源电磁法提高工作效率的重要手段之一。

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Several devices can be transmitting simultaneously on the same frequency, in the same area, creating a lot more available spectrum.

几个设备可以在同一地区以相同频率同时发射，提供了更多可用的频谱。

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