首先是截止频率，通常与同轴电缆有关。
The first is the cut-off frequency, usually with the coaxial cable.
极光嘶声则有明显的上截止频率和下截止频率。
As to auroral hiss, there are upper and lower frequency cut-offs.
采用模匹配方法分析了月形波导和加片圆波导的截止频率。
The Lunar waveguides and vained circular waveguides are analyzed by using the mode matching method.
它能直观的测试一个系统的幅频特性、相频特性和截止频率。
It can measure the magnitude characteristic, phase characteristic and limiting frequency of a system.
增加的等效电感可以容易控制DGS平面电路的截止频率特性。
Increasing the effective inductance makes it easy to control the cutoff frequency characteristics of the DGS planar circuits.
提出了一种通带截止频率连续可调的低通滤波器的新的设计方法。
In this paper, a novel design method of a passband edge frequency continuous adjustable FIR filter is presented.
相对凝视系统而言，该扫描型FPA空间截止频率更高、视场更宽。
The line array FPA has much higher space cutoff frequency and wider FOV relative to the staring system.
该滤波器具有高截止频率、与MOS工艺兼容、便于单片集成等优点。
The filter features high cut-off frequency and the fabrication process is compatible with MOS process.
其设计原则是尽可能地保持电场的纵向分布和四极截止频率保持不变。
The designing principle is that the E-field longitudinal distribution and the local quadrupole cut-off frequency should be kept as constant as possible.
截止频率是影响共发射极、共基极和共集电极电路频率特性的重要因素。
Cut off frequency is the main factor influencing frequency properties of electrode circuits of common emitter, common base and common collector.
在微波双极型晶体管中，收集区的厚度是影响其截止频率的一个重要因素。
The thickness of collector is one of the factors that limit cut-off frequency in microwave bipolar transistors.
它可以成功恢复截止频率以外的信息，增加图象细节，从而提高图象分辨率。
It can successfully recover the information out of the cut-off frequency so that we can get more details of an image and enhance image resolution.
给出了两种色散方程并研究了该波导各模式截止频率与芯区手征导纳的关系。
Two kinds of dispersion equations are given and the relation between the cutoff frequency and core chiral admittance is studied.
从基本特征方程式出发，理论上导出了两组非耦合的求解截止频率的方程式；
Based on the basic characteristic equation, two uncoupled equations for cutoff frequencies were obtained theoretically.
分析了检测信号的特征，并采用截止频率法成功地提取了微弱的缺陷回波信号。
The characteristics of the test signals were analyzed and weak defect echo signals were successfully extracted by cut-off frequency technique.
大气湍流的强度越大，自适应光学系统的截止频率越高，横向风的影响也越大。
When intensity of the atmospheric turbulence becomes stronger, or the cut off spatial frequency of the adaptive optics system becomes higher, the influence of transverse wind becomes stronger.
同时讨论了由于引入等离子体运动速度V0以后对截止频率和可传播角度的影响。
At the same time, the effects on the cut-off frequency and propagating angles. After introducing the velocity V0 of the plasma were discussed.
根据“虚短”和“虚断”的特点，可得到电路的通带电压放大倍数和通带截止频率。
According to "virtual short" and "virtual-off" feature, available to the circuit passband voltage gain and pass-band cut-off frequency.
采用矢量场法，得到了在弱导条件下传导模式的特征方程和截止频率的近似计算公式。
The eigenvalue equation and approximate formula for cut-off frequencies of guided modes are obtained by vector-field-method.
通过对弹性波在蜂窝结构中传播的研究，建立了弹性力学基本方程，得出了截止频率；
The fundamental equations of elastic mechanics were established through research of the spreading of elastic wave in honeycomb structure. The cut-off frequency was solved from the equations.
由本文模型还推导出了HEMT沟道电导、跨导、栅电容和截止频率等微波参数表达式。
Using this model, the parameters of HEMT such as channel conductance, transconductance, gate capacitance, and cut-off frequency are derived.
本文用等效介电常数法计算了镜象波导各模式的归一化截止频率，给出了通用的模式图。
The normalized cut-off frequencies of Epqy and Epqx modes for image waveguide arc investigated by EDC method. A generalized mode chart for image waveguide is given.
介绍了一种程控低通滤波器的实现方法，其截止频率可随输入信号频率的变化由计算机控制。
The method of designing the programmable cut-off frequency low pass filter is also shown. Under the control of a computer, its cut-off frequency may vary with the input signal frequency.
当频率高于截止频率时，随着频率的升高，电压放大倍数将降低，由此电路具有“低通”的特性。
When the frequency is higher than the cut-off frequency, as the frequency increases, voltage amplification factor will be reduced, thus the circuit has a "low-pass" characteristics.
文中通过所建立的本征方程对波导中各模式的截止频率进行了求解，数值结果与已有结果符合良好。
In this paper the cut-off frequencies of modes of waveguides are calculated via given eigenvalue equation. The results show good agreement with those from other sources.
结果表明，低通滤波器的截止频率、阶数和类型对检测电路的动态响应过程、检测精度都有很大影响。
The simulation result shows that the dynamic response and the detection precision in detection circuit can be greatly influenced by the cut-off frequency, order and type of low pass filter.
提出了“局部激励应变补偿”和把通常的微分负反馈改为低截止频率的惯性环节正反馈的控制新方案。
A new control approach is presented with a "local strain compensation" and a low cutoff frequency inertial link feedback in place of the differential one.
理论研究结果表明：对于同样等效直径的矩形谐振管，其截止频率远大于圆形谐振波导管的截止频率；
The results show that the cutoff frequency of the rectangular waveguide tube with the same equivalent radius is far greater than that of the cylindrical tube.
理论研究结果表明：对于同样等效直径的矩形谐振管，其截止频率远大于圆形谐振波导管的截止频率；
The results show that the cutoff frequency of the rectangular waveguide tube with the same equivalent radius is far greater than that of the cylindrical tube.
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