vibration frequency

Consideration the choice of vibration frequencies, some experts found that, when the vibration frequency is high, although removal of stubborn localized within the dense layer cake, but the stability of the shaft of the vibration wave will produce certain adverse effects.

结合振动频率方面的选择，部分专家通过研究发现，当振动频率较高时，虽然能在局部范围内切除顽固的致密层泥饼，但是振动波会对井壁的稳定产生一定的不良影响。

Theoretical mode analysis is made by establishing the dimensional dynamic infinite element model of BeiDa Bridge with Midas software, thus natural vibration frequency and mode shape of BeiDa Bridge theoretically are concluded.

利用Midas软件建立了北大桥的空间动力有限元模型，并进行了理论上的模态分析，得到了该桥理论上的自振频率与振型。

Through vibration frequency spectrum analysisof no-tillage seeder in field, its vibration characteristics were obtained.

通过对播种机的田间振动频谱分析, 得到了它的的振动特征.

Proper vibration frequency and two amplitudes for different soil and layer depth.

适宜的双频率值和双振幅值,适合不同的土壤和铺层厚度.

Even though the adoption of MTMD can not improve the free vibration frequency of structure, after the adoption of MTMD, the maximum vibration acceleration of footbridge will not exceed 0.35m/ s2, which meet the requirements of vibration limit value specified by overseas regulations.

虽然采用MTMD并不能提高结构的自振频率，但采用MTMD后桥梁最大振动加速度不超过0.35m/s2，满足国外规范对人行桥振动限值的要求。

The piston rod vibration frequency has little effect on the cavity pressure oscillation amplitude.

活塞杆的振动频率对模腔压力的波动幅值影响较小.

The rise in vibration frequency of the Planetary Grid has brought many dormant Angelic humans to awareness thus allowing for an acceleration in the recoding of Humankind's Spiritual DNA.

行星光栅提升的震动频率会使许多还在睡眠状态的天使人类觉醒如此一来使重新编码人类灵性DNA得以加速进行。

The calculated vertical vibration frequency is closed to test result.

经计算后得到的垂向固有频率与测试结果相近。

Discussion on the safety criterion of blasting vibration considering the effect of vibration frequency

考虑振动频率的爆破振动安全标准的探讨

Study on Fault Vibration Frequency Spectrums of the Felt Stretcher Roll in a Modern Wide Paper Machine

宽幅纸机毛毯张紧辊特征故障振动频谱研究

Tone distributions in disyllabic, trisyllable and quadrisyllabic words produce their rhythm, it seems that the vibration frequency of vocal cords goes slow gradually in general situation.

双、三、四音节词的声调分布所形成的语音节奏，似乎反映了声带振动频率由高至低的渐变过程是多音节词中声调分布的一般趋势。

Calculation of the Lower Order Vibration Frequency of Elastic Shallow thin Spherical Shell by means of Galerkin Method

用Galerkin法求弹性扁薄球壳的低阶振动频率

The theory and experiment of remote sensing of atmospheric torrent external size by light beam vibration frequency spectrum

光束抖动频谱遥感大气湍流外尺度的理论与实验

Several Problems of Master Design of the Low Frequency Vibration Tapping Machine Tool

低频振动攻螺纹机床总体方案设计中的几个问题

Calculation Method of Beam Type Vibration Frequency for Barrel Structure of Nuclear Reactor

反应堆吊篮结构梁型振动频率的计算方法

To avoid the damage to economization coal implement resonance in running, the theory that flowing liquid causes the vibration is applied to analyse that the vortices break frequency and overfall vibration frequency should be avoided in the course of ash blow and dust removal.

为了避免锅炉省煤器在运行中产生共振引发的危害，应用流体诱发振动的原理分析了在吹灰除尘过程中应尽力避开漩涡脱落频率fw与湍流抖振频率fb的观点。

Results indicate that the lateral forcing vibration frequency of train is close to the lateral natural vibration characteristics of the bridge when trains running at 70 and 75 km · h-1, and the resonance occurs.

研究结果表明：列车以70和75km。

Analysis of the group of the vibration frequency of the labyrinth weir

迷宫堰频率群分析

Exact measurement for the actual vibration frequency of the blade was the focus.

准确地测量叶片实际振动的频率和振幅已成为透平机械的一个重要研究方向。

Remember, the Signal Generator frequency is one-half the wire's vibration frequency.

记住, 信号发生器的频率为金属丝振动频率的一半.

Washing ∶ phase ratio ( volume) is 20 ∶ 1, vibration frequency is 100 r/ min;

洗涤：振动频率为100r/min，相比（体积）为20∶1；

Development and Effect Analysed of Tapping Machine at low-frequency Vibration

低频振动攻丝机的研制和使用效果分析

Then the sensitivities of torsional stiffness and first-order torsional vibration frequency to design parameters of body frame are obtained by sensitivity analysis.

然后对车身骨架结构进行设计参数灵敏度分析，得出车身骨架扭转刚度和一阶扭转频率对各部件设计参数的灵敏度。

∑-method to Calculate Fundamental Vibration Frequency of Arcade Bridge

连拱拱桥振动基频近似计算的∑法

PCI-speed milling systems mill vibration frequency how to get ah!

高炉喷煤制粉系统中速磨震动频繁怎么搞定啊!

And can adjust vibration frequency, vertical, horizontal angle and wind volume.

振动频率, 纵向 、 横向倾角及风量均可调节.

Axis symmetrical radial vibration of a thin annular plate with tapered section plane is studied and the equivalent circuit is derived by using electromechanical analogy method. Based on the circuit, the resonant frequency equation are obtained.

基于机电类比原理，给出了锥形剖面薄圆环形聚能器的轴对称径向振动等效电路，由等效电路得出了其径向共振频率方程。

The tensile strength of the sample was improved notably with the increases of the vibration frequency and pressure, where the maximum increase was 41%.

随着振动频率和振动压力的增加，振动试样的拉伸强度得到明显改善，其最大增幅为41%。

A Study on the Low Frequency Ground Response Induced by Metro Train and Corresponding Vibration Reduction Measures

地铁列车引起的低频地表响应及减振措施研究

In section 4, the properties of the vibration frequency, the interaction energy and the effective mass of the polaron in a parabolic quantum dot, which is a strong-coupling with LO phonon, are reached.

在第四节中研究抛物量子点中与LO声子强耦合极化子的振动频率、相互作用能和有效质量的性质。