大家都搜：
窄频率
1、cumulative frequency───[统计]累积频率，[电子]累积频数
2、frequency generator───[计]频率发生器
3、frequency equation───频率方程
4、narrow down───（使）变窄， （使）减少， （使）缩小；缩小；限制；减少；变窄
5、frequency polygon───[统计]频数多边形
6、frequency range───频带; 频段；[电子][通信]频率范围
7、narrow path───窄道；狭窄的小路
8、narrow───vt.使变狭窄；vi.变窄；n.海峡；狭窄部分，隘路；adj.狭窄的，有限的；勉强的；精密的；度量小的
9、frequency───n.频率；频繁
1、Such assumptions sometimes may result in narrow frequency band, large time delay and unstable system.───这样得到的控制XiTong频带较窄、时滞大，还有可能出现控制XiTong不稳定。
2、Many bats emit an echolocation call that contains a narrow frequency range and then analyze returning echoes to navigate and to detect prey.───许多蝙蝠会发出频率范围狭窄的回声定位呼叫，然后分析回声来作导航与侦测猎物。
3、Performance of linear compressor is sensitive to working frequency , and only in a narrow frequency band it has higher efficiency.───直线压缩机的性能受到XiTong工作频率的影响，只在较窄的工作频率范围内有较高的效率，存在最佳效率点。
4、Based on T type filter, the new ballast can achieve a wide dimming range with a very narrow frequency variation range, and it can operate with low lamp current crest factor.───基于T型滤波器的调光方法，能在很窄的工作频率范围内实现深度调光，同时具有灯电流波峰因数低的优点。
5、Narrow frequency and sharp angular defect mode of one-dimensional photonic crystals in visible and near-infrared───可见光波段一维光子晶体窄频带锐角度缺陷模
6、speech is sparse in time-frequency domain, so the energy of voice signal only concentrates on some narrow frequency, and the energy of voice sources are not overlap each other.───语音信号是时频稀疏的，语音信号的能量主要集中在某些窄带上，且各语音源的能量集中区域不交迭。
1、Such assumptions sometimes may result in narrow frequency band, large time delay and unstable system.
2、Based on T type filter, the new ballast can achieve a wide dimming range with a very narrow frequency variation range, and it can operate with low lamp current crest factor.
3、Based on T type filter, the new ballast can achieve a wide dimming range with a very narrow frequency variation range.