管道

They are made up of arm section and handle section. Pipes of T-shaped form are important parts that used on pipeline diffluence. FRP pipelines that produced by filament winding molding process can take full advantage of the FRP's various merits and improve the production efficiency.

三通管件是用于管道分流分输的重要部件，通过纤维缠绕成型工艺生产的FRP（纤维增强塑料，也叫玻璃钢）管道能充分发挥其优点，且机械化生产质量稳定，效率高。

During the calculation the results got by quintic spline kernel was the best so it was chosen as the proper kernel for the SPH simulation. By comparison of the simulation results got by SPH and finite volume method, it was proved that the buffer cells method proposed in the SPH simulation to implement the Dirichlet boundary conditions was accurate, and this is of great importance for the simulation of flows pass a pipe. At last, the SPH method was improved to simulate the liquid-solid two phase flows and the results show that this method was appropriate for the simulation of flows containing viscous fluid and macroscopic solid components. Now the two methods are both able to predict the continuum flows and rarefied flows severally, but the hybrid program still has some aspects to be improved.

首先用标准算例验证了SPH方法的理论模型和计算程序的准确性；通过比较确定选用五次样条核作为计算低雷诺数下的粘性连续流动时的核函数；采用SPH方法和有限体积法分别对同一管道流动进行了对比计算，证明了本文提出的边界缓冲区方法在实现SPH方法中的流体边界条件时的有效性，解决了SPH方法模拟管道流动时的一个关键问题；巧妙地使用SPH方法对化工分离流动中常见的固液两相流及固液耦合作用进行了模拟尝试，获得了较好的结果；在跨尺度计算方面，目前两个子程序已经能够分别模拟连续的和稀薄的二维管流问题，二者的耦合计算程序还处于调试和优化阶段，各个参数对于计算精度和计算速度的影响规律仍在探索中。

The grid type energy dissipator process, commonly used in water conservancy project, was adopted in the design of sewerage system.

山地城市的地形坡度较大，排水管道系统的上、下端落差大，因而需设置大量的跌水、消能构筑物，为此，在城市排水管道工程设计中引入了在水利工程上常用的格栅式消能池工艺，并介绍了格栅式消能池的工艺构造、消能机理及设计计算方法。

In chapter 2, the present distribution parameter of fluid pipe are analysed and compared with each other in both time domain and frequency domain. One of them is considered to be most suitable for theoretical analysis of hydraulic system.

第二章分别从时域和领域两个角度，对现存的各种流体管道数学模型进行了分析和对比，从中选择适合本课题进行研究的流体管道模型。

In order to compensate for the difference in the height of the cold end center section and the hot end center section and the resulting difference in the distance between the hot and cold center section and between the hot and cold connecting plate duct assemblies, the main support pedestal panels include offsets which extend downwardly along the sides of the cold end center section to meet with the cold end connecting plate duct assemblies.

为了补偿冷气端中心部分与热气端中心部分的高度差，以及由此带来的热气和冷气端中心部分的距离差以及冷热气端连接板管道系统间的距离差，主承重支座板上有一偏移量，它沿着冷气端中心部分的侧面向下延伸直到与冷气端连接板管道系统相连。

Dynamic mass equilibrium is set up in the thesis, and leaks detection based on it can be carried out.

为了及时发现管道在输送过程中的泄漏，本文基于质量平衡原理设计了管道实时泄漏检测系统。

In this study, a claw-shaped microchannel device for focusing the sample flow was designed with the surface modification of the microchannel by the self-assembled monolayer technique and with the fluid flow driven by the electroosmosis.

本研究以自组装单分子层技术改质微管道壁面，并使用电渗流驱动流体的方式，设计能汇聚样品的爪型微管道装置。

The solidify response that used Kissinger equation and Crane formula computation to fix a system is kinetic the model is equational, on this foundation, forecasted this kinds of conduit below isothermal condition to use oxygen of frit knot annulus the solidify responses of coating is characteristic, construction of preservative to the conduit henceforth coating provided academic reference.

并采用Kissinger方程和Crane公式计算确定了体系的固化反应动力学模型方程式，在此基础上，猜测了等温条件下该种管道用熔结环氧粉末涂料的固化反应特性，对今后的管道防腐涂层施工提供了理论参考。

According to the principle of thermal equilibrium and piping thermorytic characteristics, the relationship between the flow velocity in the heating pipe and the greenhouse climate has been set up.

根据热平衡原理和管道散热特征，得到了热水管道加热时流速与温室环境温度的关系，建立了温室温度的控制模型。

An erector of skyscrapers.One that installs and repairs pipes and plumbing.

管子工，水暖工安装和修理管道和管道设备的人

The basic concept of FOP can be summarized as to further optimize effective prescription according to the standard of curative effects and with the aid of modern science and technology and theories of traditional Chinese medicine.

其基本内涵可概括为：以确有疗效的中药复方为研究对象，以现代科学技术和传统中医药理论为技术支持，以该复方所治病证的药效响应为评价标准，以优化重组疗效更优的新复方为研究目的。

Ever since our world has been a world, native forests have been indiscriminately exploited by man.

自从我们的世界一直是世界原生森林被任意剥削人。