查询词典 damping-off

"Damping",The statement for damped oscillation in regardless of time scale, is called damping ratio.

"，"在忽略时间量状况下，描述的阻尼振荡，称为阻尼比。

The results show that for weak driving, the population difference displays damping coherent oscillation and/or damping quantum beat, depending on the initial preparation. The coherence exhibits damped oscillation with Rabi frequency.

结果表明：当系统和环境的耦合较弱时，变化初始条件，粒子束翻转是阻尼的相干振荡，相干性以Rabi频率阻尼振荡。

The concept of a shroud dry friction damping factor is presented to measure dry friction damping on shroud interface.

提出用阻尼因子的概念解决关于凸肩干摩擦阻尼大小的度量问题。

"But if damping factor is a number derived from the speaker impedance, and speaker impedance dances all over the chart, how can damping factor just be a single number?"...

"但是如果阻尼因子是从扬声器的阻抗计算出来的数值，而且扬声器阻抗会在整个图表上跳舞的话，怎么有可能阻尼因子只是一个单一的数字？"。。。

With the research of the mechanism of fluid damping, the expression of the fluid damping force is established.

本文首先通过研究流体阻尼的形成机制，建立流体阻尼力的函数表达式。

The excitation displacement and damping force were measured and the equivalent damping was evaluated from the experimental results.

试验采用频率为4 Hz、振幅为1 mm的正弦波，通过所记录的阻尼器位移和阻尼力时程来评价阻尼器的等效阻尼及其变化，并对阻尼器的刚度影响进行了定量分析。

Therefore, the property of the damper depends on magnetic-magnetic field parameters and magnetic-viscosity characteristics of the MR fluid. In this paper, the effect of various parameters on damping force has been discussed by analyzing of the damping mechanism.

本文通过对液力阻尼的机理分析，较为深入地探讨了引起阻尼的各种参数对阻尼力的影响效应，重点研究了用磁流体作为阻尼液而实现阻尼可控的途径、理论和实现方法。

The measurement of damping capacity is one of the key problems in developing novel structural materials and high damping materials.

阻尼性能的测试是新型结构材料和高阻尼材料的研究和开发中的一个关键问题。

Based on the classic composites laminates theory,the stiffness matrix and the equivalent damping matrix of the laminates which can be described by elastic constants and damping constants were determined.

根据经典层板理论分别推导出了显含弹性常数和显含阻尼系数的纤维增强复合材料层板的刚度矩阵和等效阻尼矩阵。

In order to improve the reliability of the nuclear Generating Sets and the stabilization of the power system, prevent the long time low frequency oscillation caused by the disturbed of the outside electrical net, assured improving the stabilization margin of the nuclear generating sets in the precondition of enough transient stability, validate the sensitivity of the parameter to the damping of Generating Sets of the MEC5220 digital excitation adjustor produce in Japan that used in the Second Project of Qinshan Nuclear Power Plant, confirm the parameter rationality of the digital excitation adjustor, optimize the parameter of PSS, in this paper, we put up a in-depth study to the principle of MEC5220 digital adjustor produce in Japan by the PSS/E software that develop by the PTI Company in the USA, completed the modeling of the excitation adjustor, PSS, generator, excitor, described the performance of this excitation adjustor, analyzed the essential reason that caused the low frequency oscillation, illuminated the factor that influence the damping characteristic of the MEC5220 digital excitation adjustor. Based on model and emulate, this paper optimized the primary parameter of the excitation adjustor, make a reasonable regulation to the PSS parameter.

为提高核电机组的运行可靠性和接入系统的安全稳定性，防止在外电网的干扰下核电机组发生长时间的低频振荡，保证机组在暂态稳定的前提下提高其稳定裕度，验证秦山核电二期核电机组所配日产MEC5220型数字式励磁调节器参数对机组阻尼的灵敏性，确定数字式励磁调节器的参数的合理性，优化PSS整定参数，本文利用美国PTI公司研发的PSS／E软件对日产MEC5220型数字调节器的原理进行进行了深入细化的研究，完成了励磁调节器、PSS、发电机、励磁机的建模，描述了该型励磁调节器的性能，分析了产生低频振荡的根本原因，阐明了影响阻尼特性的因素。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。