Heat sets these particles in random motion.
热量使这些粒子作随机运动。
The system input in this case is turbulent air which produces random pitching motion of the vehicle.
在此情况下，系统的输入是紊流大气，它使飞行器产生随机俯仰运动。
The idea is that share prices follow some gentle random walk away from an equilibrium, rather like motes of dust jiggling around in Brownian motion.
其想法在于，股票价格遵循偏离均衡的相当温和的随机漫步（random walk）原则，颇似布朗运动（Brownian motion）[5]中四处轻摆的花粉微粒[6]。
The pseudo random of chaotic state is described according to the motion of point in phase.
用相空间表示点的运动来描写混沌态的赝随机变化。
The random nonlinear differential equation of the rolling motion of ships in random beam waves is established considering the nonlinear damping, nonlinear restoring moment, and the random waves.
为了研究随机海浪中船舶航行安全域的构造及生存概率的预报方法，考虑阻尼和复原力矩的非线性及海浪的随机性，建立随机横浪中船舶运动的随机非线性微分方程。
According to the probability and statistics theory, the mechanism is designed, that's considering the random error of the component to make sure that the motion accuracy is in the allowed error range.
依据概率统计的相关理论进行机构设计，即考虑构件制造尺寸的随机误差，以保证机构运动的精度在允许的误差范围内。
A random synthesis procedure based on finite fault model is adopted for near field strong ground motion simulation, in this paper.
为了模拟近场强地震动，采用了基于有限断层模型的一种随机合成方法。
Using molecular dynamic simulations, this paper studies the vortices motion in random pinning superconductors.
用分子动力学方法模拟计算了二维无序钉扎系统中磁通的运动。
The vibrations which constitute a wave in a gas superposed on the random thermal motion.
气体中形成波的振动叠加在这种无规则热运动上。
The results may better reflect the non-stationarity of ground motion in time domain and are closer to reality than those by wave theory and stationary random vibration theory.
由于这种方法能较好地反映地面运动的时域非平稳性，所以得到的计算结果更真实。
When the rotation oscillation motion is executed, the film area firstly moves in a rotation direction, wherein the motion can be a random mode.
在旋转振荡运动时，所述膜区域首先在一个旋转方向上运动，其中该运动可以是任意方式的。
Molecular diffusion occurs in a gas as a result of the random motion of the molecules.
气体中的分子扩散是由分子的不规则运动产生的。
Brownian motion the random motion of microscopic particles due to their continuous bombardment by the much smaller and invisible molecules in the surrounding liquid or gas.
显微镜下可见的颗粒的随机运动，是由于在液体或气体环境下许多小而不可见的分子连续碰撞产生的。
The power spectral density function of earthquake motion is usually used for the random response analysis of engineering structures in the frequency domain.
工程结构的随机地震反应分析，常在频域中用到地震动的功率谱密度函数。
The parameters of random model of ground motion given in this study provide relatively reliable and accurate earthquake motion input for stochastic seismic response analysis of structures.
最后给出了规范各种工况下的地面加速度功率谱参数值，为随机抗震计算分析提供了依据。
Then the motion responses in a random seaway are predicted in time and frequency domain, and the bending moment of boat's girder is further deduced.
而后，分别采用时域方法和谱分析方法，预报快艇在不规则波中的运动响应，进而确定总纵弯矩。
In this paper, based on earthquake-resistant design of long-span Bridges, the patterns of random earthquake ground motion and the methods of seismic response analy...
本文结合大跨度桥梁抗震设计，系统地介绍了随机地震动场的模型以及随机地震动场多点激励下大跨度桥梁地震反应分析的方法。
Laser motion equation have been obtained with thermodynamical method in the paper, and term of "random force - is not appeared in the equation."
本文用热力学方法处理了激光运动方程，得到的运动方程中不出现“随机力”项。
In other words, the Mach number is a measure of the directed motion of the gas compared with the random thermal motion of the molecules.
用另一句话说：马赫数是气体的有序运动和分子无规则热运动的程度对比的度量。
In this paper, based on earthquake-resistant design of long-span Bridges, the patterns of random earthquake ground motion and the methods of seismic response analysis for long-span...
本文结合大跨度桥梁抗震设计，系统地介绍了随机地震动场的模型以及随机地震动场多点激励下大跨度桥梁地震反应分析的方法。
In this paper, based on earthquake-resistant design of long-span Bridges, the patterns of random earthquake ground motion and the methods of seismic response analysis for long-span...
本文结合大跨度桥梁抗震设计，系统地介绍了随机地震动场的模型以及随机地震动场多点激励下大跨度桥梁地震反应分析的方法。
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