radio-frequency field

Headquarters had a tape recording of radio voice communications from the field.

指挥中心有一盘带子记录了当时从战场发过来的无线电通讯内容.

Power dividers and directional couplers are passive devices used in the field of radio technology.

功率分频器和定向耦合器是无源器件在外地使用的无线电技术.

The Research for Field Intensity Prediction Software of Radio Signals in Mobile Networks

移动网无线信号场强预测软件的研发

The NFC ( Near Field Communication) technology raised in these years even developed new world of short-range radio communication antenna research.

近年来兴起的NFC技术（Near Field Communication），更开辟了近场天线研究的新天地。

Using the dressed test particle approach to deduce the scattering power spectrum of radio waves by a quasi-equilibrium ionized gas in the presence of an external magnetic field

用试验粒子法求有外磁场影响时准平衡态下的等离子体气体的散射功率谱