1. The target words were 12 high-frequency transparent words, 12 high-frequency opaque words, 12 low-frequency transparent words, 12 low-frequency opaque words and 48 pseudowords. 目标刺激为高频透明、高频不透明、低频透明、低频不透明词各12个和48个假词，被试任务为即既又准的判断目标刺激是否是一个词。
2. A form of frequency modulation in which the carrier frequency is shifted between a mark frequency and a space frequency in response to the impressed intelligence signal ( frequency-shift keying ). 一种方式，其中载波频率在标志频率和场频率之间移动，以响应外加的情报（数据）信号。
3. A form of frequency modulation in which the carrier frequency is shifted between a mark frequency and a space frequency in response to the impressed intelligence signal ( frequency-shift keying ). 频率调制的一种方式，其中载波频率在标志频率和场频率之间移动，以响应外加的情报（数据）信号。
4. If the carrier frequency by changing the method to send binary symbols, is the frequency shift keying (FSK) method, when the "1" when there is low frequency, "0" when there is a high frequency. 如果用改变载波频率的方法来传送二进制符号，就是频移键控（FSK）的方法，当“1”出现时是低频，“0”出现时是高频。
5. No matter carrier wave is which frequency in radio paragraph, always go to frequency conversion of high frequency signal at present signal of a low frequency undertakes demodulation. 载波无论是无线电中的哪一个频段，今朝老是把高频信号变频到一个低频信号进行解调。
网络释义
low-frequency communication cable low-frequency telecommunication cable 低频通信电缆;
low-frequency communication cable low-frequency telecommunication cable 低频通信电缆;
low-frequency communication cable low-frequency telecommunication cable 低频通信电缆;
