查询词典 volume controller

In this thesis, I summarize the theoretical calculation method, applied scope and notice of siphonic drainage system, and point out the advantage of siphonic drainage system compared with gravitation drainage system. In the archetype experiment study of siphonic drainage tube, I adopt different tube diameter and different structural height to survey the drainage volume and press in different place. I observe various kinds of flow state, and get chief factors which influence hydraulic peculiarity of system as the tube diameter or structural height, and find out the relevance of factor to flux. I apply CFD Fluent software and adopt standard k-ε model and RNG k-ε model, then use finite volume method and second-order upwind scheme to discrete numerical model, while coupling numeration of velocity field and press is based on SIMPLE. In the numerical simulation of curved part of tube, siphonic drainage tube experiment system and multi-outlet siphonic drainage system, I make research on internal velocity and press of system in different project condition by changing the tube diameter of curved part, negative press value in tube export and improving the quantity of water gutter. This thesis first adopts a method of combining archetype experiment and numerical simulation to study the siphonic drainage system, test and verify the validity of experiment and numerical simulation, and makefurther study on system, it solves the problems of limited testing conditions, and has a logical results, it can provide a valid method for optimizing and designing the drainage tube-net system. The conclusion have referring value for study and design of siphonic drainage system.

本文首先对虹吸式排水系统理论计算方法、适用范围以及注意事项做出总结，并分析了虹吸式排水系统的优势；再对虹吸式排水管道进行原型试验研究，采用不同管径不同立管高度，对系统流量、管道压强进行量测，观察了各种工况下的流态，对其水力特性进行研究分析，找出影响水力特性的落差、管径主要因素以及与排水量的关系；进一步应用计算流体力学Fluent软件，采用标准κ-ε模型与RNGκ-ε模型，计算过程应用有限体积法和二阶迎风格式对数值模型进行离散，速度和压力的耦合采用SIMPLE算法，分别对系统弯管段、虹吸排水管道试验系统、多斗虹吸式排水系统进行数值模拟分析，通过改变管段弯头处半径、管段出口负压值、增加雨水斗数对不同工况下系统内部的速度和压力进行研究；本文首次采用结合原型试验与数值模拟相结合的方法，对虹吸式屋面雨水排水系统进行研究，试验与模拟相互验证，并进行拓展，很好地解决了虹吸式屋面雨水排水系统由于试验条件限制问题，结果正确合理，为排水管网系统设计和优化研究提供了有效的方法，对工程设计有较好的参考价值。

Classifying by genetic distance, we selected 5 greatly fastgrowing families and 10 less fastgrowing families, compared with Slash pine, whose genetic gains of volume are 44% and 14% respectively, and with Mason pine , whose genetic gains of volume are 197% and 14% respectively.

对家系的遗传距离进行了聚类分析，确定了5个极速生家系、8个较速生家系，其材积增益与湿地松相比分别为44%和14%，与马尾松相比分别为197%和136%。

The nonlinear regression function of mathematic tool software SPSS was used to build models about DBH, high of tree, volume of single timber and stand volume slash pine plantation, and these models are have a certain extant applicability.

利用SPSS的曲线估计和非线性回归功能，获得了具有一定适应性的湿地松人工林胸径生长模型、树高生长模型、单株材积模型、林分蓄积量模型。

This paper studies the reconstruction of the 3D solidi model based on ICT slicing and presents a new edge matching method and a reconstruction method of solid-model based on surface identification, Volume cell construction and volume mergence.

研究了基于工业CT 切片图形的实体模型三维重构技术，讨论了边界配准技术，提出了基于表面识别、通过逐层体元构造和体元粘合来构造实体几何模型的重建思想，并给出了一个成功的重构实

Firstly, this thesis puts forward the theoretical formula of the Volume method to compute the flood submerging range; secondly, the discrete method is used to solve the numerical solution of this formula; finally, the model based on Volume method is achieved.

首先，本文提出了用"体积法"计算洪水淹没范围的理论公式，然后，通过离散的方法给出了该公式的数值解，从而最终推导得出了用"体积法"计算的数学模型。

This law is that,"the specific gravity of any substance is the weight of any volume of it, compared with an equal volume of water."

这条规律是："任何物质的比重，都是其单位体积重量与同等体积的水的重量之比。"

This law is that," the specific gravity of any substance is the weight of any volume of it, compared with an equal volume of water ."

这就是渗透一切普遍意识中的因素，也是随处可见的波动、不安的主要原因。

The relationships between male size and spermatophore volume also increased with increasing male size, and the sperm quantity packed in a spermatophore increased with increasing spermatophore volume.

雄蟹的规格和精荚的体积的关系式随着规格的增大，精荚体积增大，精荚中精子的数目也随着增多。

The penetration depth and height of the raceway expanded with increasing blast volume. As blast volume reached a critical value, the charging material on the top of raceway went upward and the spheroidicity raceway disappeared.

随着鼓风量的增大，回旋区穿透深度和高度均不同程度的增加，当鼓风量过大时，回旋区顶部炉料上浮，椭球形的回旋区形状不再存在。

It is found that the impact pressure may be maximal when the ratio of initial air volume, under standard atmospheric pressure, to total volume in pipeline reaches a certain value.

试验结果表明，水流冲击截留气团的最大压力与截团在一个大气压下的初始体积占管道总体积的比例多少有关。

"The operators will suffer a temporary decrease in the number of consumers and short message services as people may not like having to provide their ID cards for a phone number," Xu Junqi, vice-dean with the Policy-Making Institute of the Telecommunications Research Centre under MII, said yesterday.

信息产业部下属的通信决策研究院副主任徐俊其昨天说：&实行手机实名制后，人们可能不太情愿用身份证注册手机号，所以通信运营商会暂时面临用户减少和短信用户减少的问题。&

I don't believe in make-believe!

我不相信这些虚构的故事。