查询词典 oscillation

The effects of arc unstable, arc characteristics and commutating circuit parameters on the process of self-excited oscillation in current commutation are discussed in detail.

理论分析和模拟计算的结果说明了不同的开断装置电弧特性和转移回路参数对自激振荡过程的作用，为高压直流断路器转移回路的参数设计提供了有效的分析和计算工具。

A study on self-excited oscillation nozzle for a drill bit［J］.

石油钻井钻头用自激振荡喷嘴的研究［J］。

A phenomenon called self-induction is at work here: as the current oscillates, the magnetic field around the wire changes, too, inducing voltages that slow the oscillation.

这里运用了一种「自感现象」：当电流振盪时，金属线周围的磁场也会改变，产生使振盪减慢的电压。

This novel mainly depicts Maggie's five rebellions, each of which represents an oscillation from self-renunciation to self-fulfillment on each occasion.

此小说主要是描述玛吉的五次反叛行为，每次反叛行为皆表示她从自我牺牲至自我实现的过程。

Although the first thesis on Ferroresonance was published in 1920, FR is still not a fully understood phenomenon. This thesis focuses on single phase FR in Gas Insulated Switchgearwith inductive potential transformers, fed by the circuit breaker grading capacitance. In principle, FR is a forced oscillation in a non-linear series resonance circuit including a capacitance and non-linear inductance, which shows significantly distorted voltage and current waveforms.

中文摘要虽然第一篇有关铁磁共振（Ferroresonance，简称FR）的文献早在1920年即被发表，但是此一特殊的现象至今仍然未被完全了解，本论文将讨论电力系统中之气封绝缘开关设备（Gas Insulated Switchgear，简称GIS），由於断路器的极间电容和电感型比压器（Potential Transformer，简称PT）的非线性电感所构成的单相铁磁共振；理论上，铁磁共振是由电容和非线性电感所构成的非线性串联共振，造成电压和电流波形明显的畸变。

The subcooled boiling states were visualized by Shadowgraph visualization technique and the pressure oscillation was measured by the pressure sensor.

在过冷态超流氦沸腾中，运用可视化方法对不同过冷度下的沸腾过程进行了观测，同时运用压力传感器详细研究了沸腾过程中的压力振荡。

The formation mechanism of sharkskin ,press oscillation and so on are discussed.

阐述了关于形成鲨鱼皮和压力振荡及其他挤出不稳定流动的相关机理，并总结了抑制挤出不稳定现象所采取的措施。

Some physical parameters to characterize two kinds of the extrudate distortions- sharkskin fracture and extrusion pressure oscillation were defined.

定义了定量描述两类挤出畸变现象———鲨鱼皮畸变和挤出压力振荡的若干物理参数。

The simplified model explained such nonlinear flow phenomena as the non-linearity of wall slip with shear stress, the transient oscillation in pressure, the stick-slip transition and sharkskin features in capillary rheometry.

论文中把建立的模型简化后定性解释了毛细管实验中瞬态振荡、滑-粘转换和鲨鱼皮现象，说明该理论框架在稳态剪切流场也是适用的。

Vibration reduction effect of parametric oscillation of stayed cable with linear viscous damper under simple harmonic support motion is investigated in the paper neglecting cable-bridge interaction.

本文以斜拉索为研究对象，忽略索桥之间的耦合作用，研究在支座沿弦向方向的周期运动下，线性粘滞阻尼器对斜拉桥拉索参数振动的减振效果。

And discuss some key point of integrated management system design, include hazard identification and risk assessment and risk control in the occupational health and safety management, the measure of satisfaction target of customer, the flawlessness of law system, the integration of the integrated management system and enterprise standardization system, unify lead institution and work orgnization, integreted internal audit and integrated management review.

同时，论述了一体化管理体系构建中的几个主要问题，包括职业健康安全管理中的危险源辨识、风险评价和风险控制、顾客满意度的科学监测、法律、法规体系的完善、一体化管理体系与企业标准化体系的有机结合、统一的领导机构和工作机构、一体化的内部审核和管理评审。

Deepwater Taranaki is investigated for its petroleum potential, using all available seismic data tied to shallow-water wells.

运用与浅水井相关的现有全部震波探测数据考察了深海区塔拉纳基盆地的油藏前景。