very low frequency

After the signal is processed through a low-pass filter, a very realistic waveform is obtained which can show pulsed nature, frequency, amplitude and bandwidth of television picture signals.

并将生成信号经低通滤波器处理，从而最终得到了一个能够充分反映电视图像脉冲性、频率、幅度和带宽特点的较为逼真的信号波形。

Cloge detection system of pigging and extrusion tools is adopting very-low-frequency radiowave emission and reception.

清管及挤涂工具的阻卡探测系统是采用甚低频无线电波发射、接收.

The temperature inversion frequency is very high, the mixing height is low and the stratification tends to stable.

逆温频率很高，混合层高度较低，大气层结比较稳定；

This paper analyses the electromagnetic radiation with very low frequency caused power-supply wiring of household appliances.

本文讨论了家用电器馈(电)线所产生的“特低频电磁辐射”问题.

But the frequency of recombination was very low ( 0.1%-1%) and it limited further application of the baculovirus expression vector system ( BEVS).

但由于重组病毒产生的比例很低（通常只有01%～1%），成为制约该系统应用的技术瓶颈。

At the same time, the overall social participation frequency is very low, the three types of activities range from "never" and "occasional".

同时，整体的社会参与频度很低，三类活动都介于从不和偶尔之间。

The selection of the insulator applied for a 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.

This paper briefly discusses very low frequency ( VLF ) electromagnetic technique and takes Shancheng gold mine for example.

简要叙述了 甚低频 电磁法的方法技术,并以山城金矿为例.