Different propeller has different shaft frequency.
目标的螺旋桨不同则轴频不相同。
The propeller shaft frequency is one of the important target recognition features for passive sonar.
螺旋桨轴频是被动声纳极其重要的目标识别特征之一。
Shaft frequency is one character of the target which can be applied to underwater targets identification.
轴频是目标的特征之一，可以应用于目标识别当中。
These low frequency spectrum lines are basically the harmonics of the rotor shaft frequency and the blade-passing frequency.
并且这些低频线谱基本上都是转子轴频和叶频的谐波分量。
The high power shaft alternator constant frequency systems developed by Siemens is introduced, which is suitable for large container ships.
介绍了西门子开发的大功率轴带交流发电机恒频供电装置，适用于大型集装箱船；
By changing the speed of grinding wheel, its swing frequency and the feed speed of shaft direction, different experiment results were got.
通过改变砂轮转速、砂轮摆动频率、轴向进给量，获得了一些具有对比性的试验结果。
The continuous model is adopted in the torsional vibration frequency and resonance of shaft system, the lumped parameter equivalent applied in the sub-synchronous resonance.
轴系扭振频率和响应计算采用连续质量模型，次同步谐振特性分析采用集中质量模型。
The natural longitudinal or torsional vibration of a wedge-shaped shaft is studied with perturbation method. The vibration mode function and the frequency characteristic equation are derived.
采用摄动法研究了楔形杆轴的固有纵扭振动，并且推导出了其固有纵扭振动的振型函数及频率特征方程。
By modal stiffness matrix, modal mass matrix and modal frequency, shaft units of simulator is designed. The former three steps natural characteristics are identical with the real units'.
依据设计原则，利用模态刚度矩阵、模态质量矩阵和模态频率相似进行了扭振模拟机轴系的设计，扭振模拟机轴系前三阶固有特性与实际机组轴系扭振动特性基本一致。
Further more it also investigates the influence of the stiffness of CAM shaft and rock arm supporter and the high order frequency of CAM profile on the dynamic response of valve system.
同时考虑了气门初始间隙以及由此产生的冲击现象，并研究了凸轮轴刚度、摇臂支座刚度及凸轮升程高阶频率对气门运动规律的影响。
Commonly used servo motor is ac servo motor, the motor shaft with in the photoelectric encoder, by detecting the rotor Angle to frequency conversion control.
常用的伺服电机是交流伺服电机，在电机的轴端装有光电编码器，通过检测转子角度用以变频控制。
The diagnosis parameter setting circuit is used to set up collection times N, failure warning valve value and rotary shaft gyro frequency of the machinery needing test.
诊断参数设定电路用于设置采集次数N、故障报警阀值和待测机械的旋转轴的旋转频率；
Main research content including: 1 Have studied a same diameter shaft, study how to make use of the change of natural frequency to discern the transverse crack.
本文主要的研究内容包括：1以最简单的等直径光轴为例，研究了利用固有频率的变化来识别光轴上横向裂纹的可行性。
The cause of the grinding crack on medium frequency induction hardened CAM shaft made of spheroidal cast iron was analyzed.
对球墨铸铁中频淬火凸轮轴磨削裂纹产生的原因进行了分析。
EA mounted on the either end of rotor shaft can generate impulse excitation force or simple harmonic excitation force with different frequency.
电磁激振器安装在转子的伸出端，产生脉冲激励力或不同频率的简谐激励力。
The phase and frequency between the system and generator must be small enough to ensure minor current in the armature winding of generator, avoiding the impact to the coupling shaft.
避免由于压差、频差和相角差太大，使的合闸时，发电机组电枢绕组电流过大，对发电机组联轴系统产生冲击。
The approximate formulas for the natural frequency of bridge piers with shallow foundation, pile foundation and sunk shaft foundation were derived by the Rayleigh Method.
采用瑞利法，导出了计算浅平基桥墩、桩基桥墩及沉井基础桥墩基频的近似公式。
The increase of the wheel speed, the swing frequency and the feed of shaft direction conduce to improving the grinding efficiency.
增加砂轮转速、砂轮摆动和轴向进给量可以提高单晶金刚石的研磨效率。
The amplitude of electric shaft-frequency electric field by modulating the current of ICCP system is 10 times greater than that of corrosion current.
调制阴极保护电流而产生的轴频电场最大的幅值比调制腐蚀电流所产生的电场大10倍之多。
This paper introduces the work principle of four-quadrant operating high-pressure frequency converter, and its application in coal mine auxiliary shaft winch innovation system.
介绍了四象限运行高压变频器的工作原理，并应用到煤矿副井绞车改造系统。
This machine consists of base, frequency control brake motor spindle shaft, pivoted link and barrel, etc.
该机由机座、变频制动电机主轴、回转连杆及筒体等部分组成。
Application: Main shaft of airplane engine or machine tool, high frequency motor, air compressor, oil pump and so on.
应用领域：飞机发动机或车床主轴，高频发动机，空气压缩机，油泵等。
The traditional PSS use the local signal such as the generator electromagnetism power or shaft speed as its input to restrain low frequency oscillation.
传统的PSS使用本地可测量的发电机电磁功率、转速等作为输入信号以抑制低频振荡。
In addition, a method of calculating inherent frequency of shaft line with unique view is also introduced in this paper.
另外，在计算传动轴承的固有振动过程中，介绍了一种具有独特见解的分析方法。
It may help if you reduce the frequency with which you shampoo, as this in itself is stressful to hair and causes split ends to extend up the hair shaft.
减少使用香波次数也可能奏效，因为频繁使用香波会给头发施压，造成开叉从发梢延至发干。
It may help if you reduce the frequency with which you shampoo, as this in itself is stressful to hair and causes split ends to extend up the hair shaft.
减少使用香波次数也可能奏效，因为频繁使用香波会给头发施压，造成开叉从发梢延至发干。
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