Using the testing technology of rock mass elastic wave, the methods of measuring rock mass wave velocities in situ inside the high slope of the TGP's permanent lock have been studied.
研究了用岩体弹性波测试手段进行现场测定三峡工程永久船闸陡高边坡岩体波速的方法及技术。
If a proton which has no mass can behave as a particle does it follow that an electron which has mass can behave as a wave?
如果一个没质量的光子能像粒子一样,具有质量的电子能否,表现得像波一样吗?
Based on the principle of equivalent mass, it tests the impelling vibration in sonic wave vibration system, introduces the experiment condition and process.
为此参照等效质量原理对声振系统进行了激振试验,并对试验条件和试验方法进行了介绍。
The interaction of stress wave with tunnel structures in rock mass is a complex problem, which up to now has not been solved completely.
应力波与隧道衬砌的相互作用问题为岩石力学的一个十分复杂的问题,到目前为止还没有得到圆满的解决。
Rock mass elastic wave velocity is the synthesized reflection of rock quality, rock mass structure, and rock mass existing environment.
岩体弹性波速度是组成岩体的岩石性质、岩体结构、赋存环境的综合反映。
It is found that under little axial strain, armchair carbon nanotubes are still conductors, but Fermi wave vector, Fermi dot and the effective mass near Fermi face are changed.
在小的轴向拉伸下,扶手椅型碳纳米管仍然是良好的导体,但其费米波矢、费米点及费米面处的有效质量都发生了变化。
The blasting vibration of creep mass slope of Longtan hydropower station is observed, interpreted and analyzed. The experiential formula of decay for the blasting earthquake wave is obtained.
对龙滩水电站蠕变体边坡的爆破振动进行观测、分析和处理,得到了爆破地震波衰减经验公式。
It also studied general variation regularities of wave force, added mass and added damping, TLP's kinetic respondence based on engineering examples and got some valuable conclusions (see text).
基于工程实例,分别研究了TLP波浪力、附加质量与附加阻尼、TLP的动力响应的一般规律,得到了一些富有工程意义的结论(详见正文)。
The effect of spring mass on oscillation frequency and elastic constant is discussed by solving the wave equation.
通过求解弹簧中纵波的波动方程,讨论了弹簧质量对振子的振动频率及弹簧劲度系数的影响。
It is concluded from the result that joint damp influences the propagation of wave much more than joint mass.
根据分析结果可以看出,节点质量对弹性波的传播影响不大,节点阻尼对弹性波的传播影响很大。
A continuity wave model is put forward for the dispersion process of liquid-liquid two-phase system, by coupling mass and momentum conservation equations of two-fluid model.
以双流体模型为基础,通过质量守恒方程和动量守恒方程的耦合,提出了液液两相系中弥散传质的连续波模型。
When people heard that an invasion by aliens from Mars was underway, there was a wave of mass hysteria.
当人们听说火星要入侵时,大众的恐慌情绪高涨。
The wave of UFO activity continued in the skies over Mexico and, due to the video camcorder, became the most documented mass sighting ever.
风波继续活跃于墨西哥上空,归功于可携式摄像机,成为最具备证明文件的视觉聚集。
A dark wave rose as the combined mass attack of twisted creatures sought to overwhelm the paladin.
黑暗生物们的疯狂进攻几乎形成了暗涌的大潮,张牙舞爪地试图淹没那个圣骑士。
The model and equations used for measuring the seismic effects of traveling wave onto long span bridges are derived and established, during the course of which the large mass method is utilized.
运用大质量法,建立并推导了长大跨度桥梁考虑行波效应的分析模型及解析方程。
Across the world a wave of mass deaths began, plants and animals perishing in a decade-long asteroid winter.
地球上,死亡的浪潮席卷而来。在这个由陨星引起的,长达数十年的严冬中,植物和动物,逐渐消失灭迹。
The model of a kind of wave energy device moored on seabed is simplified into a spring-mass-damping system, and then its motion equation is built according to Newton's second law.
将造波水槽内二维浮体牵引弹簧回复液压缸的受力系统简化为弹簧—质量—阻尼器系统,建立数学模型,并根据牛顿第二定律得到运动方程式。
In many practical measurings of the blast stress wave parameters in rock mass by variable capacity instrument, long wire effect has been discovered.
在变电容仪测量岩体爆炸应力波参量的多次实践中,发现存在着长线效应。
Submarine depth and rolling control near the water surface is a kind of nonlinearity control problem. The change of submarine mass, speed and ocean wave make it difficult to design of control system.
潜艇近水面运动情况下的深度及纵倾控制问题是一种非线性控制问题,潜艇自身质量及航速的变化、以及外界不规则海浪使得控制系统难于设计。
A local transmitting boundary is combined with a lumped-mass finite element technique to form a mechanical model simulating the near field steady wave motion.
本文将局部透射边界和集中质量有限元技术结合起来形成一个模拟稳态近场波动的力学模型。
In this paper, a finite element method with lumped mass formulation is applied to analyse the transient SH wave propagation in an elastic half-space with a dipping layer.
本文采用一种类似于差分方法的集中质量有限元模型和人工边界透射理论分析倾斜成层弹性半空间中瞬态SH波的近场波动问题。
Model verifications are given through comparisons between the calculated and the measured bed mud mass transport velocities as well as the rate of decay of water wave heights.
模型验证是通过计算水波波高衰减率和底床软泥体输移速度,并与有关的实验测量数据进行比较。
Model verifications are given through comparisons between the calculated and the measured bed mud mass transport velocities as well as the rate of decay of surface wave heights.
模型验证是通过计算水波波高衰减率和底床软泥体输移速度,并与有关的实验测量数据进行比较。
In this paper, a discrete local transmitting boundary is combined with a lumped-mass finite element technique for simulating steady wave motion in the viscoelastic layered medium.
本文将离散的局部透射边界与集中质量有限元方法相结合,用于模拟粘弹性成层介质中的稳态波动。
It includes mass absorption of element itself, between elements and element at original X-ray wave length.
它包括元素本身、元素间和元素对某波长的质量吸收。
The thesis adopted the high efficiency wave tray to reconstruct the tradition tray of urea synthesis column, which has strengthened heat and mass transfer.
本文采用高效的波形塔板对传统的尿素合成塔进行改造,加强了尿素合成塔内的传热与传质。
The mass sensitivity of the surface transverse wave (STW) biosensor effected by the material and thickness of the grating was analyzed.
分析了延迟线型表面横波(STW)生物传感器的灵敏度与栅阵材料、厚度的关系。
The relations between the longitudinal and transversal waves, the wave velocities of rock mass and rock were also described in it.
文章还统计了纵波和横波、岩体波速和岩石波速的关系,可供选用指标时参考。
This paper shows that the time discretization makes the lumped-mass method much better than the consistent-mass one as accuracy is concerned for simulating wave motion in the continuous model.
研究结果表明,从模拟连续模型的精度上看,时域离散化使集中质最有限元法优于一致质量法,前者可取较大时间步长。
The ocean wave is born out of surrounding mass of water which sustains and supports it, feelings are also surrounded by other feelings on which they are supported, and into which they merge.
海浪是从周围的水中产生出来的,并被它维持着。感觉也是被其它感觉包围着,支持着,并最终融入它们。
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