振动器

Therefore, researching on the influence of effluent for vibration property of the sucker rod string has important reference value for rational configuration interval design of sucker rod centralizer, and also has important significant theoretical actual meaning on the simulation of the dynamic parameters and optimizing the running of polymer holes.

因此，研究聚驱抽油机井产出液对抽油杆柱振动特性的影响，对于指导扶正器配置间距设计、完善聚驱抽油机井动态参数仿真与运行优化技术都具有重要的理论和实际意义。

V belt driving device developed is superior to flexible plate coupling and roller chain driving in VNH behavior, working endurance and axial and lateral offset tolerance.

所开发的三角带传动装置在振动噪声性能、作寿命和对轴向以及径向偏心的容忍度等方面都优于常用的柔性板式联轴器和高速滚子链传动装置。

The radial vibration of a piezoelectric ceramic thin ring and a metal thin circular ring are analyzed and their electro-mechanical equivalent circuits are obtained.

该换能器由一个厚度方向极化的压电陶瓷薄圆环及一个金属圆环组成。对压电陶瓷圆环和金属圆环的径向振动分别进行了分析，得到了各自机电等效电路。

With the development of steel continuous casting, crystallizer oscillation technology becomes an important measure to increase productivity and improve product quality.

随着钢铁连铸的发展，结晶器振动技术的发展成为提高生产效率，改善铸坯产品质量的主要手段。

The two-degree-freedom vibration system made of the main mass and dynamic vibration absorber in deep sea was studied. The mathematics model was built based on the principle of D'Alembert theory, and was calculated with non-dimensional equations.

以深海中附有动力吸振器的两自由度振动系统为研究对象，利用达朗伯原理建立了数学模型，并进行无量纲化运算。

The results show that the MR damper is rapid-response and suitable for vibration control system.

结果表明这种磁流体减振器的反应迅速，能适用于振动系统的实时控制。

This paper is focused on the vibrational energy dissipation theory of a new dry friction damper and its application to the heavy machinery .

探讨了一种新型耗能摩擦阻尼器的耗能原理及其在重型机械振动控制中的应用。

Using ISD1420 series integrated phonetic circuit to produce sound and infrared diode on-off switch to simulate the beating process, a drum without drumhead is invented.

应用ISD1420系列集成语音电路发音，红外光控器的通断对应鼓槌敲击，模拟鼓槌敲击鼓皮振动发声，制作了无皮鼓。

By the use of electromagnetic oscillation mechanical philosophy,make a electromagnetic driver have straight reciprocate power plant,frequency and amplitude controllable,can apply to in the domain of household appliance,thus contrive some new type product different use.

潘宁利用电磁振动力学原理，制造一种具有直线往复推动工作动力、工作频率或振幅可控的电磁激振器应用在家用电器方面，从而设计出一些不同用途的新产品。

Continuous Casting Strand ; Mechanism of Oscillation Mark Formation ; Oscillation Mark Controlling ; Mold Oscillation ; Electromagnetic Continuous Casting

连铸坯；振痕形成机理；振痕控制技术；结晶器振动；电磁连铸

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。