流体的

On the basic of above job a mathematical model of simulation turbulent flow with free surface is established and triumphantly applied to numerical computation on 2D spillway and 3D spillway with frusta of brake.

自然界中的流体流动问题一般都具有三维性和湍动性，对于最常见的流体—水则同时还拥有自由表面，水利工程中绕闸墩的泄洪水流、船舶工程中的船体绕流等均具有上述流动的三种特性，这三种特性是计算流体力学领域非常重要的研究内容和方向。

As the study shows, the signal of recoil velocity is selected by the velocity sensor, then the electric current of magnetic liquid buffer is confirmed through the contrast and calculation of the control system, and the movement resistance is adjusted by changing the viscosity of magnetic liquid medium, so the velocity fluctuation of bolt is reduced effectively.

研究结果表明，通过枪管速度传感器，采集发射时的后坐速度信号，经控制系统的对比和解算，确定磁流体缓冲装置的励磁电流，改变磁流体介质的动力粘度，调节自动机运动阻力，可以有效地减小自动机前冲击发速度的波动。

The optic elastic effect of optic material,the interference theory of linear polarization light and the characteristics of the manometers for production logging are analyzed to design a new type of downhole photoelectric manometer.

分析了光学材料的光弹性效应及线偏振光的干涉理论，结合井下压力计的特点，设计了一种新型的井下压力计———光电压力计，该压力计能够在流体流动或关井条件下沿井眼测量某一目的深度上的流体压力。

Therefore, the formation of the first episode of metamorphic zircons is correlated with fluid activity during the progressive high-pressure eclogite-faeies metamorphism.

年龄为240.9 4.8～245.1 3.1Ma的变质锆石的生长对应于板块俯冲过程中高压榴辉岩相变质作用期间的流体活动，而223.7 4.2-226.0 3.9Ma的变质锆石的生长可能对应了板块折返早期的流体活动。

And (2) the pore pressure is mainly controlled by volumetric strain. Stress can directly make the pore volume change, and indirectly control the variation of pore pressure changed by the pore volume.

2岩石孔隙内流体压力的变化主要受体积应变控制，应力的直接作用是使岩石孔隙体积发生非线性变化，对流体压力变化的影响是通过岩石孔隙体积变化实现的，是间接的。

For a pump speed, in fact, there are restrictions, which mainly depends on the process fluid, if the transmission is oil, pump can rotate at high speed, but when the fluid is a high viscosity of the polymer melt, such restrictions will be significantly reduced.

对于一台泵的转速，实际上是有限制的，这主要取决于工艺流体，如果传送的是油类，泵则能以很高的速度转动，但当流体是一种高粘度的聚合物熔体时，这种限制就会大幅度降低。

For a pump rotational speed, in fact there is a restriction depending on the process fluid, if the transmission is oil, pump can rotate at high speed, but when the fluid is a high viscosity of the polymer melt, such restrictions will be significantly reduced.

对于一台泵的转速，实际上是有限制的，这主要取决于工艺流体，如果传送的是油类，泵则能以很高的速度转动，但当流体是一种高粘度的聚合物熔体时，这种限制就会大幅度降低。

Flow Accelerated Corrosion is an important aging mechanism for water and water/steam piping made of carbon steel or low alloy steel in both nuclear power plants and fossil power plants. Accidents in Surry Unit 2 in USA and Mihama Unit 3 in Japan, caused by pipe rupture due to FAC, led to severe casualties. The experience, mechanism and countermeasures about the aging management of FAC in nuclear power plants are summarized in this paper.

管道流体加速腐蚀是核电厂和常规电厂碳钢或低合金钢材料汽水管道的一个重要的老化机理，历史上曾发生过美国萨里核电站2号机组和日本美滨核电站3号机组管道破裂等导致人员伤亡的严重事故；本文简要总结了核电厂管道流体加速腐蚀的经验教训、机理及其老化管理的一些方法和对策。

A separation in the boundary layer of fluid about a moving streamlined body, such as the wing of an airplane, causing a breakdown in the smooth flow of fluid and resulting in turbulence.

例句1。气流分离移动的流线型的躯体上流体边界层上的分隔物，如飞机的机翼，在平滑的流体流动中会引起故障和湍流

In the process of the oil and gas field's exploration, when the well contains a great amount of supercritical fluid such as CO2 and H2S, the well blowout, erosion, wax problem and scale problems will take place more frequently. In the process of drilling, when the supercritical fluid emerged by conventional natural gas changes in phase transition, the well blowout will happen.

在油气田的开发过程中，井筒内高含CO2、H2S的超临界态流体，加速油井管柱的腐蚀、结蜡、结垢、灾难性的突发事故的出现；在钻井过程中，气侵的超临界流体在环空相态变化将可能引发钻井井喷。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。