低频噪声low-frequency noise
Downlink Frequency在以下哪个参数界面中显示()。
RFID(Radio Frequency IDentification,无线射频识别器)的两个基本器件是()。
高频噪声high-frequency noise
射频识别技术的英文全称是Radio Frequency Identification缩写()
CATEGORY A EPIRB’s transmit on frequencies that are monitored by().
If you know that the vessel you are about to call on the VHF radio maintains a radio watch on both the working and the calling frequencies,which frequency should you call on? ()
Pitch is produced by frequency of vibration of the vocal cords. The higher the frequency, the higher the pitch.()
To increase the frequency of an operating AC generator, you should ()
在轨道区段包中,当识别号“NID-FREQUENCY”=1表示轨道区段载频为()Hz。
摩托罗拉General参数中,“frequency_type”的参数取值范围是()
frequency division multiplexing频分多路复用
中频噪声mid-frequency noise
闪光临界融合频率(critical fusion frequency CFF)
基于覆盖的同频切换Intra-frequency Handover Strategy一般用()测量事件。
在无线电台中,Frequency Modulation缩写是FM,代表的是()
The frequency output of an operating alternator is controlled by the ().
Which manipulation is the fastest manipulation of frequency?
射频识别(Radio Frequency Identification,RFID)技术的基本原理是( )
RFID是Radio Frequency Identification的缩写,即射频识别,俗称( )。
RFM(Recency Frequency Monetary)是指对顾客以下情况进行分析:( )、( )、( )
Term Frequency是指一个term在整个文档集合中出现的次数。
The highest frequency of a signal is ,sampling angular frequency is , , in order to avoid aliasing when sampling this signal, what pre-processing is required before sampling ()
In this advertisement, "frequency" means____.