A theoretical formula for particle velocity variation along shaped charge jets was derived based on the energy conservation of jet stretching.

Then a theoretical relationship between ultrasonic velocity and attenuation of rock and axial stress based on an effective crack density parameters are given.

在此基础上用裂纹的体积变形建立岩石在单轴加载过程中的等效裂纹模型，用该等效模型建立了岩石在单轴加载全过程中超声波速及衰减系数随应力变化的理论关系。

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Theoretical study of differential velocity 4-vane pump

四叶片差速泵的理论研究

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Theoretical research on the velocity field of charged droplet

带电雾滴速度场理论研究

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Theoretical Estimation of Threshold Velocity of Blasting Vibration for Rock Slope

岩质边坡爆破振动速度阈值的理论估算

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A Theoretical Analysis of the Velocity Ratio of the Radial Turbine

径流式透平速度比的理论分析

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The theoretical critical impact velocity in tension is discussed: For OFHC copper, the theoretical critical impact velocities ( the plastic wave speed reaches zero) in tension are calculated with J-C and Z-A constitutive relations and the obvious differents are indicated. 7.

讨论了理论临界冲击拉伸速度：从理论临界拉伸速度的定义出发。采用J-C及Z-A本构关系计算了OFHC材料塑性波趋于零时的不同的临界冲击拉伸速度。

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Through analyzing the flow in the porous matrix with the Brinkman extended Darcy equation and through including the effect of dispersion by adding the dispersion coefficient into the energy equation, the theoretical solution of velocity distribution and temperature fields were obtained.

通过用Brinkman extended Darcy方程分析多孔层内流体的流动，以及在能量方程中加入弥散系数，得到模型内速度场和温度场的理论解。

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Taking the conventional artillery as an example: the muzzle velocity of shells are subjected to various inherent factor constraints, so its projectile has a theoretical limit muzzle velocity.

比如，在常规火炮中，炮弹的初速度受到各种固有因素的限制，即弹丸初速存在一个理论上的极限速度。

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A macroscopic mechanical model of friction reduction in the presence of vibration was introduced and a theoretical model of velocity control using throttle plates was established.

引入了振动减摩宏观力学模型，建立了基于流体力学的节流调速理论模型。

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Theoretical analysis of velocity and removal efficiency of non-metallic inclusions in molten steel by electromagnetic filtration

电磁过滤钢液中非金属夹杂物的运动速度和去除效率的理论分析

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Theoretical analysis of velocity profiles for a free surface flow under bucket energy dissipators

自由面流的速度分布理论分析

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Experimental and Theoretical Study on Velocity Field of Buoyancy Convection in the Melt

熔体内重力对流速度场的实验研究及其理论分析

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A qualitative estimate of gas hydrate saturation can be obtained by comparing the theoretical P-wave velocity for full-water saturation to actual P-wave velocity.

通过对比饱和水的理论P波速度与实际P波速度，可以得到天然气水合物饱和度。

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Analysis and Comparison of The Theoretical Calculation Velocity of Flying Plate with The Result of Experiment in Explosive Welding

爆炸焊接中飞板运动速度的理论计算与实验结果的对比分析

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The study of the liquid flow fields on the tray and hydrodynamics performance are the theoretical bases for the tray optimization and the practical application.

板上液相流场以及流体力学性能的研究是塔板优化及开发的理论基础。

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In this paper, benzoic acid refining distillation system with SNIA benzene liquid phase process was researched via simulation. The effect of theoretical tray numbers 、 operation pressure 、 reflux ratio 、 feeding position etc.

本文对SNIA甲苯液相法生产苯甲酸产品精馏系统进行了研究，考察了三个精馏塔的理论板数、操作压力、回流比、进料位置等条件对SNIA苯甲酸产品质量的影响。

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The paper calculates the theoretical tray demand for the different desired separation of the ortho-and-para-chlorotoluene, and makes a comparison between the two-tower and three-tower technological process.

计算了精馏分离法对于不同的邻、对氯甲苯的分离要求所需的理论板数，比较了两塔流程与三塔流程的优缺点；

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This article makes an overall calculation, analysis and comparison for water feed and theoretical tray number of half-water gas scrubber.

对半水煤气洗气塔进水量、理论板数较全面进行了计算分析及比较。

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The thesis studies the movement of short cylindrical particles with high-speed camera, depicting the trajectories of some particles which agree with the particle theoretical trajectory. The thesis takes some research about the force of the short cylindrical particles.

本文采用高速摄影机研究了短圆柱颗粒的运动规律，描绘了部分颗粒的运动轨迹。

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Orbital correction is necessary to ensure the probe follows its theoretical trajectory as closely as possible, said the CNSA.

国家航天局表示，轨道修正是为了确保探测器始终飞行在适当的轨道上。

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