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。

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

youdao

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。

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

youdao