压力

The main achievements include as follows:(1)With research results of hydraulic jump and impinging jet,flow patterns in stilling basin and plunge pool are analyzed in detail, the distributing characteristics of mean pressure and fluctuating pressure are investigated.

主要成果包括：(1)引用水跃和冲击射流的研究成果，详细分析了底流和挑跌流消力塘内的水流流态特征，探讨了这两种型式消力塘内时均压力和脉动压力的分布规律。

The most common type uses spring tension and pressure against a plunger to maintain the pressure.

最常用的一种回压阀使用弹簧张力和对柱塞的压力来保持压力。

By using the calculated results of EET theory, the local valence electron structure elements of residual chemical bonds of Al-Si and Mg-Al alloy melts, that is, the residual bond structure models, were established. From the viewpoint of effect of pressure on melt structure, the essential reason of deviation phenomenon for maximum solution point and eutectic point in thermodynamics equilibrium phase diagram was analysed. Moreover, under pressure condition, the change of thermodynamics equilibrium phase diagram was macroscopic reflection of microstructure change of alloy melt.

运用固体与分子经验电子理论的计算结果分别建立Al-Si、Mg-Al两种合金熔体的剩余化学键的局域价电子结构基本单元即残余键结构模型，从压力对熔体结构作用的层面，分析热力学平衡相图中最大固溶点和共晶点发生偏移的本质原因，并指出压力作用下热力学平衡相图的变化是合金熔体微观结构信息变化的宏观反映。

Secondly, the numerical model is used to analyze the influence of thickness of flexible wall on earth pressure distribution, the coefficient of earth pressure and the application point of the resultant force.

其次，对不同刚度的柔性挡墙在典型鼓型变位模式下的墙背土压力分布、土压力系数和合力作用点高度进行了数值研究。

Pressure Angle is the angle between a line tangent to an involute and a radial line through the point of tangency.

压力角：压力角是花键的渐开线齿廓的切线与通过切点的半径所组成的夹角。

This paper describes an approximate solution, in polar coordinates, to the plane problem of foundation consolidation (suitable for certain boundary conditions), and also provides graphs for calculating the distribution of pore water pressure at any time underneath the strip footing with uniform load.

本文叙述了地基渗透固結平面課題的极坐标近似解法，并提出了条形均布荷重下任何时刻地基內孔隙水压力分布的計算图表，可供在复杂荷重及施荷速率条件下計算孔隙水压力之用。

Based on the study of the formation mechanism and conditions of abnormal pore fluid pressure.

在异常孔隙流体压力形成机制及条件的基础上，对异常孔隙流体压力在封闭各种相态天然气的作用方面进行了研究。

Pore pressure is the pressure of the fluid in the formation.

孔隙压力是地层中液体的压力。

The variation of positive selective pressures from initial positive selection to eventual purifying selection not only represents the adaptive evolution of S protein from animals to human, but also provides a good clue to investigate the interspecies transmission of other viruses.

从最初的阳性选择到最后的负选择，S蛋白经历了变化的自然选择压力。这种变化的选择压力不仅反映了SARS-CoV由动物向人类跨种传播的适应性进化过程，也为研究其他病毒的跨种传播机制提供重要线索。

The contacting press between the electrode and the pressboard can affect the measurement of moisture in transformer insulated pressboard .

针对绝缘纸板微水分测量中传感器电极与纸板的接触压力问题，利用绝缘纸板微水分介电测量系统，将绝缘纸板置于平板电容传感器中并施加压力，传感器在正弦驱动信号源的作用下，输出的感应信号经调理电路缓冲、滤波，并与驱动信号比较。

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。