microseism

1. Theoretical analysis and experimental results show that the method has the effect as same as Hall sensor in the event that ensure the DC motor start-up quickly and microseism, and no locked rotor.
   理论分析和实验表明：提出的方法与霍尔传感器一样能保证无刷直流电机快速大转矩、小抖动、无堵转的平滑启动。
2. High frequency vibrations did occur early in the microseism, and then the frequency was attenuated because of the damping of rock but not by the frequency dispersion of surface waves.
   微地震过程中，先产生频率较高的振动，由于岩体阻尼而非面波频散引起振动频率衰减。
3. Design and Calculation for Generator of APDL Command Stream under Microseism of Factory House
   厂房微振的APDL命令流生成程序设计与计算
4. The space of the extremum mine microseism is closely connected with the high stress zones.
   极值矿山微震发生的空间部位与高应力区密切相关。
5. Application of Microseism in Site Predominant Period Testing
   地脉动在场地卓越周期测试中的应用
6. Microseism source location with hierarchical strategy based on particle swarm optimization
   基于粒子群算法的岩体微震源分层定位方法
7. The microseism source excitation model and the relation between the magnitude and vibration cycle
   微震振源激振模型及振动周期与震级的关系
8. Analysis of Influencing Factors of Coal and Gas Outburst and Microseism Precusor
   煤与瓦斯突出影响因素及微震前兆分析
9. Theory of Rayleigh wave in multi-layered media and its application in microseism observation
   层状介质中的瑞雷面波理论及其在场地脉动观测中的应用
10. First theories foundation of microseism is introduced, it is pointed out that microseism wave is made of P waveform and rayleigh wave.
    本文首先介绍了地脉动的理论基础，指出地脉动波是由面波和体波组成的。
11. Some feasible standards and methods about discerning microseism signals are put forward and reliable observation results are obtained in several cases around the world.
    近年来，国际上提出了一些现实可行的微地震信号识别标准和识别方法，并取得了成功的观测成果及分析地下深部结构的实例。
12. Study on the Characteristics of Microseism Changes Before Strong Earthquakes by Digital Seismic Network
    数字地震台网大震前地脉动信息变化特征研究
13. The technology of real-time microseism monitoring in the operation-involved area of oil field is an interesting research topic.
    油田生产波及区的微地震法实时监测是目前国内外方兴未艾的研究课题。
14. A discussion on the remote connection of typhoon and earthquake from microseism stress
    从脉动应力讨论台风与地震的遥联性
15. It is demonstrated that the resonance phenomenon produced by the geophone-ground coupling is the main factor of causing the microseism. So the production mechanism of high-frequency disturbance is expounded tentatively.
    说明了检波器与地耦合中产生的谐振现象是产生这种微震的主要因素，从而初步阐明了高频干扰产生的机理。
16. Study on Mechanism of Vibration Frequency of Free Site in Microseism Test
    地脉动测试自由场地自振周期的机理研究
17. Measurement Techniques of Cable Force Using Microseism Method and Parameter Analyses
    脉动法索力测量技术及相关参数分析
18. This paper emphasize in study of mechanism of vibration frequency for free site in microseism testing.
    本文的着重于地脉动测试自由场地自振频率的机理研究。
19. Microseism Crack Monitoring Technique in Lun 16-27 Well, Ziyin Oilfield
    子寅油田仑16-27井微地震裂缝监测技术
20. 4-D microseism ( or the 3-D characteristics changing with time) monitors geological hazard efficiently, such as landslide and collapse, with an automatic, continuous and long term system.
    地微震四维观测即空间三向振动特性随时间的变化，以自动长期连续观测系统有效监测滑坡、崩塌等地质灾害；
21. Variations in microseism before and after the Tangshan earthquake
    唐山地震前后脉动变化的研究
22. Research on Microseism Monitor in Height of Water Flowing Fractured Zone of Cover Rock
    覆岩导水裂隙带井下微地震监测研究
23. By designing the inner surface curve of the stator, the delivery microseism of pump can be reduced to zero theoretically.
    通过合理设计泵内定子内曲线表面，在理论上实现了无流量脉动；
24. The Design and Implementation of Microseism Measurement Based on Optical Fiber Resonance
    利用光纤共振技术测微振动的设计与实现
25. Influencing by the faults, the terrestrial stress size and direction on the plane differs greatly, which can make the outspread direction of the hydraulic fracturing change. Massive monitored results of on-site microseism artificial fracture azimuth has accounted for this point.
    但受断层影响的平面地应力大小和方向差异较大，导致水力压裂裂缝的延伸方向有所改变，大量的现场微地震人工裂缝方位监测结果也说明了这一点。
26. Microseismic monitoring technique has developed to a high technology in recent years. Precise location of microseism incident and the level determination is realized by sound ballistics, seismology and geophysics theory and computer.
    微震监测技术是近几年来发展起来的一项高新技术，利用声发射学、地震学和地球物理学原理以及计算机强大的功能来实现微震事件的精确定位和级别大小的确定。
27. Microseismic monitoring technique is a new geophysical technology, which originates from 1990s. Through monitoring microseism incident of the mine, we can find portent of geological hazard in time, and take measures to avoid casualty.
    微震监测技术是一种新的物探技术，起源于20世纪90年代。通过监测矿井微震事件的发生可以及时发现地质灾害事故的前兆，并及时采取有效措施，避免灾害事故发生。
28. At the same time, the microseism monitoring system still is real-timely running, as a new reference to guide the mine production safety.
    同时，微震监测系统仍保持实时运行状态，为矿山安全生产提供了指导。
29. The simulation results and the microseism source analysis are both very unify, finally effectively determines the range of ground pressure activities.
    模拟结果和微震震源分析进行对比，两者非常吻合，最终有效地确定了地压活动范围。
30. Gas outburst microseism precursor mode which is in the situation of structuring coal across region and fault in the coal seam are analyzed.
    分析煤层开采过区域构造煤、断层情况下的瓦斯突出微震前兆模式。

noun

1. a small earthquake

   Synonym:    tremorearth tremor