frequency ratio的例句大全

A Research over the Impact of Pier-Beam Frequency Ratio on the Dynamic Performance of Bridge Span Structure

墩梁频率比对桥跨结构动力性能的影响研究

Effects of f2/ f1 frequency ratio on distortion product otoacoustic emissions

f2与f1比值对畸变产物耳声发射幅值的影响

however, lt-tmd needs higher optimum tuning frequency ratio and lesser optimum damper ratio with reference to traditional tmd.

然而，LT&TMD比传统的TMD具有更大的最优调谐频率比和更小的最优阻尼比。

Although the multi-scale wavelet transform has obvious advantages, it is easily leads to phase deviation and affects the image fusion quality because of the lack of translation invariance;② The spatial frequency ratio which could reflect regional similarity among images was defined.

在肯定小波变换作为图像多尺度融合工具所具有明显优势的同时，指出了其因缺乏平移不变性易导致相位偏差降低融合质量的不足；②定义了能够反映图像之间区域相似程度的空间频率比概念。

Study of countermeasures to deceptive jamming using random linear modulation frequency ratio SAR

随机线性调频斜率SAR抗欺骗干扰方法研究

Study on Point of Contact on Periphery and Frequency Ratio in Li Sa Ru's Graph

利萨如图周边切点与频率比的研究

The nonlinear stiffness of the insulating system and the best frequency ratio are put forth.

采用非线性刚度为主的隔振系统，确定了最佳频率比。

finally, a solution to restraining the harmonic current and ripple torque is suggested, ie a larger modulation frequency ratio of 3k is to be adopted, as it is used in spwm.

文中还提出了抑制谐波电流和脉动转矩的方法，如在SPWM生成中，采用较大的3的整数倍调制比。

the optimum parameters include the optimum frequency spacing, average damping ratio, and tuning frequency ratio.

最优参数包括最优频率间隔 、 最优平均阻尼比和最优调谐频率比.

The relation between the threshold and the ratio of the lowest resonance frequency to the end vibrating frequency is also discussed in the report.

文中还讨论了阈值同共振腔最低阶共振频率与壁振动频率之比的关系。

It is proved by the analysis of the simulated signals and different signal to noise ratio experimental data that this method can effectively determine the filter center frequency and bandwidth, thereby improving the signal to noise ratio and the diagnosis of bearing faults.

通过对仿真信号和不同信噪比实验数据的分析，证明此方法能够有效确定滤波中心频率和带宽，从而提高信号的信噪比，实现对轴承故障的诊断。

Design and precision analysis of dual-modules frequency divider with regulable duty ratio

一种可调占空比型双模分频器设计及精度分析

The filter is featured with center frequency of 65.28 MHz, code rate of 4.08 Mbit/ s ( with tap space of 0.245 μ s) and duration of 250.735 μ s. The ratio of self related peak value to maximum sidelobe is 26 dB.

匹配滤波器的中心频率为65.28MHz，编码速率为4.08Mbit／s（抽头间隔为0.245μs），持续时间为250.735μs，自相关峰值与最大旁瓣比为26dB。

It is concluded that the ratio of the energy of long-wavelength perturbed magnetic field near the cyclotron frequency to the transverse thermal energy of beam electrons decreases with the cubic power of the applied longitudinal magnetic pressure.

发现在有外加强纵向磁场时，在回旋频率附近长波模扰动磁能与京电子横向热能之比随纵向磁场压强的三次幂减少。

PS has many unique properties such as enormous intermal surface, high resistance ratio, high chemical activity, etc. PS has been developed in many application fields including optoelectronics, thermoelectric materials, sensor, microwave/ radio frequency microelectronics, biomedicine, etc.

多孔硅由于具有大的比表面、高电阻率、高化学活性等性能，在光电子、热电材料、传感器、微波/射频微电子学、和生物医学等许多领域获得了广泛的应用。

For the requirements of the signal-to-noise ratio of lower in part of telephone channel the algorithm to convergence in the time domain and frequency domain step by step.

针对部分线路上语音信噪比较低的实际，引入谱熵进行分级检测，将算法在时域和频域逐级进行收敛。

Moreover, it can transmit data at a high speed in the frequency selective fading channel. However, one problem of OFDM lies in the big Peak-to-Average Power Ratio ( PAPR), which leads to intermodulation distortion of OFDM signals and degradation of systematic functions.

然而，OFDM系统中最主要的问题之一在于OFDM信号的峰值平均功率比（PAPR）很大，容易导致OFDM信号的交调失真和系统性能的下降，这就限制了OFDM技术的广泛应用。

The micronucleus test indicates that in the three different-dose groups of the leaching liquor of central venous catheter system, there is no increase is found in the occurrence frequency of the micronucleus and in the ratio of polychromatic erythrocytes to normoblast.

微核试验中心静脉导管系统材料浸提液在三个不同剂量组微核出现频度及多染红细胞和幼红细胞的比率未见增高。

The influence of the ratio of primary coil and secondary coil, excitation voltage, excitation frequency, diameter of the magnetic core on the sensitivity of the differential transformer are mainly analyzed.

研究了初级线圈与次级线圈间的匝数比、激励电压、激励电源频率、铁芯直径等对差动变压器灵敏度的影响。

The natural frequency and damping ratio are the main parameters affecting frequency response errors. Transient response errors are related to the product of natural frequency and the rising edge time of the measured thrust.

固有频率和阻尼比是影响频率响应误差的主要参数，而瞬态响应误差则与固有频率和被测推力的上升沿时间的乘积有关。