This is an optical table with lower vibration frequency and good vibration isolation.
这是一种具有较低振动频率和优良隔振性能的光学工作台。
The light self weight, large flexibility, small damp and low natural vibration frequency make it very sensitive to wind load.
大跨空间结构自重轻、柔性大、阻尼小、自振频率低，对风荷载比较敏感，风荷载已经成为大跨空间结构设计的重要荷载。
Air spring is characteristic of variable stiffness, its natural vibration frequency is much lower than that of leaf spring and will not change with load of vehicle.
空气弹簧具有变刚度特性，其固有振动频率要比钢板弹簧低得多，且不随汽车承载质量的变化而改变。
Using the quick and slow two kinds of vibration frequency to relax your tired body parts.
使用快、慢两种震动频率按摩您身体的劳累部位。
The shear spring bears most of the vertical loading, which decreases the vibration frequency.
剪切弹簧承担大部分垂直方向的载荷，降低震动频率。
A method for measuring the grain moisture content by means of vibration frequency is presented.
提出一种振动式谷物水分的测量方法。
Through the analysis of experimental results, the ideal vibration frequency curve was determined.
通过对试验结果的观察分析，确定了较为理想的振动频率控制曲线。
Study of deduction of flute making vibration frequency formula and validation of physical perimeters.
对笛子制作频率公式的推导和物理量的验证进行了探讨。
The principle, structure, vibration frequency and amplitude of the resonance stirring reactor are discussed.
本文对自制共振搅拌反应器的原理、结构、振动频率和振幅进行了分析。
A non invasive and non contact optical method to measure muscle vibration frequency and amplitude is introduced.
介绍一种测量肌肉震颤频率和幅度的无损伤、非接触光学方法。
The transition states were characterized by vibration frequency analysis, with only one imaginary vibration model.
通过振动分析确定所得过渡态具有唯一虚振动频率；
It is for telemetering the vibration frequency, dynamic stress and temperature of turbine blades under dynamic state.
用于涡轮机叶片在动态状态下对其振动频率、动应力和温度进行遥测。
A computer testing system developed to analyze the inherent vibration frequency of cantilever structure is described.
介绍了一种悬臂梁结构固有振动频率的计算机测试系统。
The viscosity of LDPE melt decreases in vibration force field and has a minimum value with vibration frequency change.
在振动力场作用下ldpe熔体的粘度减小，随振动频率的变化有一最小值。
In this article, a calculation method is put forward for free vibration frequency of a pipe which contains flow fluid.
本文提出了对包含有流动流体的管道自由振动频率的一个计算方法。
Measurement for rotative velocity of full-closed compressor by the method of measuring vibration frequency is discussed.
讨论了用测量振动频率的方法对全封闭式压缩机进行转速的测量。
It is found that added mass of cylinder increases with length and radius, and is independent on the vibration frequency.
发现圆筒结构附加质量随圆筒结构的长度增加、直径增加而增大，与振动频率无关。
Adopted elastic supporting and altered exciting manner, two phase vibration frequency degeneration of the motor is realized.
采用弹性支撑和改变压电陶瓷激振方式，实现了电机两相振动频率的简并。
The calculation result indicates that the torsional vibration frequency will avoid from power frequency and multiple frequency.
计算结果表明，机组扭振频率避开了工频与倍频，轴系不会因共振而破坏。
For labyrinth seals, the effect of the vibration frequency of rotor on the rotor dynamic coefficients is analysed in this paper.
对迷宫汽封转子振动频率对转子动特性系数的影响进行了分析。
Through the hydrodynamic analysis, the formula of axial vibration frequency and water hammer pressure of the tool has been obtained.
通过流体力学分析，得出了该工具轴向振动频率和水击压力公式。
And numerical example is adopted to explain the influence of external prestress to the vibration frequency and modality for simple beam.
通过数值算例验证了体外预应力对简支梁桥振动频率和振动模态的影响。
By using a numerical method, the effect of changing in magnetic field upon vibration frequency and coefficient of reduction is presented.
最后给出数值结果，表明磁场的变化对振动频率及衰减系数的影响。
The equation of free vibration frequency of this system has been derived by Averaging Method of W. Ritz and a numerical example is given.
用里兹平均法导出了系统的自由振动频率方程，并举出一计算实例。
Through the structural design and mechanical analysis, the formula of the lateral vibration frequency and excitation force has been obtained.
通过结构设计和力学分析，得出了该工具横向振动频率和激振力公式。
Computation of vibration frequency is carried out and seismic response is analyzed by use of response-spectrum method and time history method.
对各种模型进行了振动频率计算，并应用反应谱法和时程分析法计算了其地震反应。
This paper analyzes the modal of Y7125 gear grinder spindle, gets out the main four stages of spindle vibration frequency and deals with the data.
基于有限元方法，对Y7125型磨齿机的砂轮主轴进行模态分析，得出了四阶主振动频率，并对数据进行了处理。
The safety of a main well headframe would be reduced significantly, due to increased loading capacity and higher vibration frequency in a coalmine.
由于煤矿主井井架提升能力的增加，引起井架杆件受力增大，受迫振动频率增大，导致安全性能降低。
The safety of a main well headframe would be reduced significantly, due to increased loading capacity and higher vibration frequency in a coalmine.
由于煤矿主井井架提升能力的增加，引起井架杆件受力增大，受迫振动频率增大，导致安全性能降低。
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