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A numerical method, where the pressure is used as a primary dependent variable, is presented for the solution of the two-dimensional steady Navier-Stokes equation in general curvilinear coordinates. SIMPLE (Semi-Implicit Method for Pressure Linked Equations) is mainly adopted.

本文首先详细推导了二维任意曲线坐标系下张量形式的流动控制方程及其和压力修正方程的离散形式，应用求解压力速度耦合的SIMPLE算法，以压力为主要求解变量对Navier-Stokes方程进行数值求解。

Considering that rock's permeability is exponential function along with formation pressure and starting from nonDarcy percolation theory of gas at high speed, this paper derives a new pseudo pressure binominal exponential deliverability equation and its solution method.

在考虑岩石渗透率随地层压力呈指数函数变化的基础上，从气体的高速非达西渗流理论出发，推导出新的拟压力二项式产能方程及其求解方法。

This paper presents a numerical simulant solution of a scatheless measurement of helium pressure in fuel rod by measuring clad temperature indirectly based on the principle that helium has different heat transfer characteristics at different pressure.

用数值模拟的方法对一种用温度测量进行燃料棒内氦气压力无损检测的方法进行了模拟计算，该方法的基本原理是氦气在不同压力下具有不同的传热特性。

In view of constant pressure outside boundary double permeability composite oil reservoir model, the variable rate question dimensionless pressure distribution Laplace solution has been studied, and the corresponding application briefly derived.

针对定压外边界的复合双渗储层模型，研究了变流率问题的无因次压力分布的Laplace空间解，并简要地引导了相应的应用，是对试井分析理论的一种完善，对相应的试井分析软件的研制更具有深远的应用价值，对油藏数值模拟方法也具有指导意义。

In this paper the stress analysis solution of parallel circular tunnels in elastic ground under any coefficient of lateral pressure is derived, and the stress field and displacement field of parallel circular opening subjected to continuous boundary stresses are first solved, and then the ground pressure and the internal force in lining are obtained, using the displacement compatibility equation between linin...

先求得连续洞周边界应力条件下双圆形洞室的应力场和位移场；再利用衬砌和围岩界面位移协调方程，获得平行圆形隧道的地层压力和衬砌内力公式，并可考虑开挖面的三维效应和洞室自由位移等因素。根据结论公式，对隧道间距、地层性质、衬砌厚度等诸因素进行了讨论，得到了单因素的一般规律，在此基础上，提出了平行圆形隧道最小间距的近似方法，并在某工程中予以应用，得到了满意的结果。本应力分析方法在平行圆形隧道的设计和施工中供作参考。

Based on these measured data, the ice-formation pressure in concrete was calculated, and it is proved that the ice-formation pressure generated by 2%~6% NaCl solution is maximum, i. e. it causes the most severe damage of concrete.

基于这些实测数据，经计算证明了浓度为2%~6%的NaCl溶液将产生最大的结冰压，从而形成最严重的混凝土盐冻破坏。

On the basis of the results of survey and study about researches of pulse well test at home and abroad, the method of total pressure history match and numeric solution is selected as an advanced research, the goal is to investigate a method of pulse well test in theory and analysis under the conditions of no knowledging about the changing tendency of formation pressure and having outer boundary.

根据对国内外关于脉冲试井研究情况的调研结果，本文选择全压力史拟合方法和数值求解方法作为一个探索性研究课题，将有限元法应用于压力的数值求解过程，目的是探索一种在地层压力变化趋势不清楚和有外边界的条件下的脉冲试井理论和分析方法，从而为油田提供结果更准确的、信息更丰富的开发调整依据资料。

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。

The experiments show that the PS and PSD of particles produced by SAA process can be controlled by adjusting process parameters, and among them, the pressure of the saturator used has the most effect on the PS and PSD, while the temperature of the saturator has the least effect. When using ethanol as solvent, the optimum operating conditions of using SAA process to produce erythromycin micro-particles from erythromycin-ethanol-CO2 system were found as follows. The pressure and temperature of the saturator are 10.5MPa and 70℃, respectively, the inlet flow rate and the concentration of inlet solution of the precipitator are 9 mLmin^(-1) and 15mgmL^(-1), respectively.

实验结果表明：选用乙醇做溶剂可制备出粒径在1~3μm的红霉素超细微粒，大部分微粒形态呈完整的球形；各影响因素对微粒粒径及粒径分布均有不同程度的影响，其中混合器压力对微粒粒径及粒径分布的影响最明显，混合器温度的影响最小，微粒粒径及粒径分布可通过改变操作参数进行控制；在本研究范围内，最优操作条件为混合器压力10.5MPa，混合器温度70℃，溶液浓度15mgmin^(1)，进液速度9mLmin^(1)。

Of the client pay no attention to what solution causes to refuse, the psychological pressure of generation everyday its dial not tire of irritatedly client phone, confront a client do not understand, the rejection of 99%, psychological pressure is enormous, produce the feeling of understanding gradually.

客户的不理解造成的拒绝，产生的心理压力天天不厌其烦的拨打客户电话，面对客户的不理解，99%的拒绝，心理压力巨大，逐渐产生会心的感觉。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。