Wind direction, wind velocity, air temperature and air pressure have a very great effect on the propagation of pressure waves.
风向、风速、气温和气压对压力波的传播有十分巨大的影响。
Wind direction, wind ve lo city, air temperature and air pressure have a very great effect on the propagation of pressure waves.
风向、风速、气温和气压对压力波的传播有十分巨大的影响。
Meanwhile, the influences of pipeline internal pressure, wall thickness, crack arrest length and initial crack velocity on the crack driving force (crack propagation) are further studied.
进而分析了管道内压、壁厚、裂纹止裂长度和初始裂纹速度对裂纹驱动力(也即裂纹扩展)的影响。
This paper has analyzed the relationship of flow, pressure pulsation and noise in hydraulic system, and has inquired into generation and propagation of fluid noise in the system.
本文分析了液压系统流量、压力脉动与噪声的关系，对系统的流体噪声产生与传播进行了一些探讨；
The effects of pressure fermentation on barm propagation, the formation and reduction of diacetyl, the formation of higher alcohols and esters, and beer taste were studied in the experiments.
摘要实验研究了压力发酵对酵母繁殖、双乙酰形成及还原、高级醇和酯的形成，以及啤酒口味等方面的影响。
The fluid flowing boundary extends outwards continuously is the feature of pressure propagation with low velocity Non Darcy percolation.
流体流动边界不断向外扩展是低速非达西渗流压力波传播的特点。
In accordance with the technology of ultrasonic nondestructive pressure measurement, a sing-around device was developed for measuring the propagation time of ultrasonic wave.
针对超声波无损压力检测技术，开发了一种采用回振法测量超声波传播时间的装置。
At relatively high pressure, in addition to electromagnetic field and electron's Coulomb scattering by gas molecules, plasma instability would result in decrease of propagation efficiency.
而较高气压时，束电子除受自身电磁场作用及库仑碰撞散射外，等离子体不稳定性使束流传输效率明显降低。
This method can effectively determine the direction of the pressure wave propagation and source, thereby excluding the impact of adjustment of working conditions, reduce the system false alarm rate.
该方法能够有效的判断压力波的传播方向和来源，从而排除了工况调整的影响，降低了系统误报率。
Experimental and theoretical results of Intense Relativistic Electron Beam (IREB) propagation in low pressure neutral gases are presented.
本文给出了强流相对论性电子束(IREB)在低压中性气体中传输特性的理论和实验研究结果。
The propagation angle of the principal fault rupture through soil equals the dilation angle of the soil under the mean confining pressure.
主裂缝的总体传播方向与断层平面的夹角约等于土体在土层平均围压下的剪胀角。
Bottom hole pressure and the models of considered 3d crack propagation model in situ rock mechanics parameters, have made the assessment of situ rock mechanics parameters more realistic.
井底压力与考虑三维裂缝扩展模型时的就地岩石力学参数模型的建立，使得就地岩石力学参数的评估结果更符合实际。
During fracture propagation driven by detonation gas in oil well, dynamic response of crack surface under the gas pressure results in fast fracturing.
油井爆生气体对岩石劈裂作用过程，是裂缝面对动态荷载响应并使其发生动态扩展的过程。
This paper introduces a new pressure derivative theory chart of infinite propagation fracturing well.
本文介绍了无限传导裂缝井的新压力导数理论图版。
SPH methods in AUTODYN-2D was used to investigate the characteristics of debris clouds propagation inside the gas-filled pressure vessels for hypervelocity impact on the pressure vessels.
针对空间碎片超高速撞击充气压力容器问题，应用非线性动力学分析软件AUTODYN-2D，采用SPH方法对碎片云在高压气体中的运动特性进行了数值模拟研究。
While the confining pressure will inhibit the initiation and propagation of cracks, consolidate the carrying capacity of microelement and enhance the secant modulus of rock.
围压则可以抑制裂纹的萌生和扩展，强化了微元体的承载能力，使得割线模量会增加。
While the confining pressure will inhibit the initiation and propagation of cracks, consolidate the carrying capacity of microelement and enhance the secant modulus of rock.
围压则可以抑制裂纹的萌生和扩展，强化了微元体的承载能力，使得割线模量会增加。
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