1) audio center frequency
伴音中心频率
2) AC audio center
音频中心
3) sound intermediate-frequency amplifier
伴音中频放大器
4) center frequency
中心频率
1.
Study on center frequency of tomato water stress based on virtual instrument
基于虚拟仪器的番茄水胁迫中心频率的研究
2.
In this paper,developed are a method and correspondent software for calculating formation permeability from the center frequency shift and travel time delay in direct Stoneley wave.
利用多极子阵列声波测井资料提取直达斯通利波、计算斯通利波中心频率偏移和时间延迟来进行地层渗透率反演的方法已被研究了多年。
3.
This paper derives the universal formulas for three characteristic parameters, center frequency, gain of center frequency and quality factor of bandpass filter, calculates the theoretical values of the three characteristic parameters; analyzes the effects of center frequency migration of bandpass filter on logs.
双侧向测井仪电子线路中的带通滤波器中心频率偏移直接影响地层电阻率测量值准确性，文章从理论上导出了带通滤波器的三个特性参数：中心频率、中心频率处增益、品质因素的通用表达式。
5) central frequency
中心频率
1.
The main method is combined the square wave circuit with the switch capacitor filter MAX268BCNG to realize the automatic tracking filtering at the central frequency,which is form1Hz to 15Hz.
为了自动跟踪信号频率变化除去噪声,本文研究了一种能自动跟踪信号频率变化的窄带通滤波器,滤波器由方波发生电路和开关电容滤波器MAX268BCNG相结合来实现,其中心频率可在1Hz和15Hz之间自动跟踪。
2.
The central energy variation of electron bunch is obtained by measuring the central frequency, which is in agreement with the result from measuring closed orbit and horizontal dispersion function.
还通过测量电子回旋中心频率测出了电子束中心能量的相对变化 ,与由测闭轨和色散函数计算出的结果相互吻
3.
The key technique of this new filter is how to achieve the extreme narrow band-pass width and a slight deviation of central frequency.
如何实现极窄的通带宽度和极小的中心频率偏差是研制中所解决的关键技术问题。
6) sound carrier
伴音载频
1.
On-line test of the frequency differences between picture carrier and sound carrier;
在不停机情况下测试图像和伴音载频的间距
补充资料：伴音
在电影和电视中配合图像的声音。也叫伴声。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条