研制了一种新型直线超声波电动机，电机采用面内振动的形式。
The motor based on the vibration in plane of the rectangular plate.
提出了一种基于薄板面内振动的纵弯模式驻波直线超声波电动机。
A linear ultrasonic motor was put forward. Elliptical motions of the surface points of the stator are generated by the superposition of longitudinal and bending modes of the oscillating structures.
结论提速列车车厢内振动、噪声对乘务员自觉症状、内分泌系统、消化系统及视野等方面有一定影响。
Conclusions the vibration and noise in the accelerated train have some effects on the subjective symptoms, endocrine system, digestive system and field of vision of the train attendants.
此前乔瓦·尼巴。蒂斯塔·贝内代蒂(1530- 1590)有相关的振动频率比和音调比之间的关系的理论。
Earlier Giovanni Battista Benedetti (1530-1590) had related the ratio of pitches to the ratio of the frequencies of vibrating objects.
当足弓塌向内侧时，这种“内翻”吸收了振动。
When the arch collapses inward, this "pronation" absorbs shock.
在第24个周期开始前，人们通过太阳的扭转振动的位置和强度准确的预知了第24周期内太阳黑子活动的推迟。
Before cycle 24 commenced, the position and strength of the torsional oscillation correctly predicted the late arrival of this cycle's sunspot activity.
地震是地球内部发生的急剧破裂产生的震波，在一定范围内引起地面振动的现象。
The earthquake is the sharp burst occurred within the earth produced in certain van around the shock wave, ground vibration phenomenon caused inside.
合适的导轴承空隙，才可能同时保障转动轴与支座的振动均在准许范围内。
The appropriate guide bearing gap, it is possible to ensure that the vibration of the rotating shaft and bearings are within the permitted range.
在建立拱的振动传递方程时，考虑了拱内的轴向变形和几何刚度。
The geometric stiffness and the axial deformation of arch are considered in formulating its vibration transfer equation.
极大多数的情况下应用电动振动台，因为它能在一定广的频率范围内工作并且能准确地控制波形。
Electrodynamic shakers are used in most cases because they can operate over a broad frequency range with accurately controlled waveform.
这又使中耳内一些细小的骨头振动。
引起堆内构件振动的诸多因素都具有随机性和模糊性。
The factors which lead the vibration all have randomness and obscureness.
但乳化液在分离装置内停留时间过长或过短时，剪切振动对油水分离的作用不明显。
The effect of shear vibrating on separating efficiency is not obvious when the emulsion fluid stays in the unit for over long or short time.
研究速度变化的轴向运动粘弹性梁在亚谐波共振及组合共振范围内的参数振动。
Parametric vibration of an axially moving, elastic, tensioned beam with pulsating speed was investigated in the vicinity of subharmonic and combination resonance.
计算的结果表明在一定的能量范围内增加入射原子的平动能及振动量子数对该反应具有促进作用；
The results showed that translation energy and vibrational excitation are effective for the reaction in definite energy range, but rotational excitation is unfavorable for the reaction.
通过振动频率和内禀反应坐标(IRC)分析，对反应过渡态进行了确认。
The transition states of the two reaction paths are obtained and verified by the analysis of vibration and internal reaction coordinate (IRC).
振动卸料漏斗在很大程度上增加了料仓内的流动区域。
A vibrating outlet funnel considerably increases the fluidity zone within the bin.
在一定参数范围内，该磁流体阻尼器能满足振动系统对不同阻尼的要求。
Within some range of parameters, this kind of MR fluid damper can meet the different requirements for damping of vibration system.
试验和理论分析表明，利用该方法可以有效地将正常轴承和内滚道伤轴承、外滚道伤轴承的振动信号进行分离。
Experiments analysis show that the roller bearings vibration signal with normal, inner rings defect and outer rings defect are identified effectively.
为了提高PACKER内拉杆的抗振能力，进行振动特性分析是十分必要的。
In order to improve the antivibration ability of PACKER inner pull rod, it is necessary to analyze its vibration characteristics.
利用地面和车载测试系统，对列车车体表面、车厢内部、隧道壁面空气压力变化、隧道内列车风、隧道口微气压波和隧道壁面振动加速度等参数进行测试。
Using the ground and vehicular test systems, many parameters such as pressure change, wind caused by train, micro-pressure wave and vibration acceleration of the wall of tunnel were tested.
在图9所示结构中，内支撑锥形弹簧通过其上下振动，阻止颗粒沉积到密封腔中。
As the infrastructure shown in Graph 9, the inwardly-sustaining cone-shape string prevents particles from depositing into the sealed cavity, via its vibrating up and down.
在齿轮传动领域内，至今依然普遍认为，只要主动齿轮的输入扭矩保持恒定，渐开线齿轮支座就不会产生振动。
Up to now, it has universally been thought that provided the input torque of the driving gear of the involute gearing keeps constant, its supports do not vibrate.
本文采用内反馈理论分析了旋转轴的横向振动（这一振动与不转轴的运动形态及系统特性有很大的不同）；
The inner feedback theory is used to investigate the transverse vibration of rotating shafts, whose motion patterns and system characteristics are greatly different from those of non-rotating ones.
计算结果表明，由于隔声罩内声腔与结构振动的相互作用，考虑声固耦合后，隔声罩透射损失曲线峰值较多。
Because of taking the sound-solid interaction into account, there are more peak value in transmission loss curve.
随机脉宽调制技术可以使逆变器输出电压的谐波成分均匀地分布在一个较宽的频率范围内，达到抑制噪声和机械振动的目的。
Random pulse width modulation technique can be used to distribute voltage harmonics over a wide frequency range and to realize the reduction of acoustic noise and vibration.
振动格栅紊流是一种无平均流动的特殊紊流，在一定范围内呈各向同性。
Turbulence generated by vibrating grid is a kind of special turbulence, without mean flow and being isotropic in certain region.
最后根据流致振动的振动机理对这些堆内构件进行流致振动评价。
At last, all these reactor internals are evaluation according to the vibration mechanism of flow induced vibration.
建立了用来检测微机电系统谐振器面内运动的激光差动多普勒系统，测量了谐振器的振动速度。
A differential laser Doppler system is built to measure the in-plane movement of micro-electro-mechanical systems (MEMS), and the vibration of a MEMS resonator has been measured.
建立了用来检测微机电系统谐振器面内运动的激光差动多普勒系统，测量了谐振器的振动速度。
A differential laser Doppler system is built to measure the in-plane movement of micro-electro-mechanical systems (MEMS), and the vibration of a MEMS resonator has been measured.
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