二次利用

This paper discusses the model of secondary water-supply system that can take advantage of the energy in the muicipal pipeline and its tactics of pumping water .

着重讨论利用市政管网压强能量的二次供水系统在理想情况下的用水模型以及相应的抽水策略，为实际用水模型的建立提供理论依

So it satisfies the development of modern designing. In the system, the operating platform is Windows2000. VC++6.0 is the integrated development environment. Pro/TOOLKIT is the development tool. Pro/ENGINEER WILDFIRE is parametric CAD platform.

本论文在Windows2000操作系统上，利用Visual C++6.0集成开发环境和Pro／TOOLKIT二次开发工具，以Pro／E野火为CAD系统平台建立了NGW型行星减速器参数化CAD系统。

And it includes systematic introduction on how to make a parameterization design program that can be called by Pro/E with the help of VC++ platform and Pro/ Tookit which is the secondary development tool- bag ...

文中还系统地介绍了如何利用VC++平台及Pro/E的二次开发工具包Pro/Toolkit开发出能运行于Pro/E环境下的零件三维模型的参数化设计程序的总体思路和具体的设计步骤。

Through the allocation of resources processing technology, we have not only made full use of its economic value, and put a stop to the harmful secondary pollution, and save the cost of sludge disposal and other resources, that is, in line with the strategic objectives of sustainable development, and have obvious environmental benefits and economic benefits.

通过资源化处理技术，我们不仅充分利用了其经济价值，杜绝了其危害性及二次污染，并且节省了污泥处理的成本及其他资源，符合可持续发展的战略目标，具有明显的环境效益和经济效益。

Since many in the actual use of steam boiler, it will add some chemicals to prevent or reduce the scale production, which lead the steam generation system also contains the chemical ingredients used to direct the use of this steam humidification will secondary pollution caused by space, this time we will require the use of steam to steam the way, the use of dirty steam as pure thermal energy to heat water, steam cleaner can be obtained.

由于许多蒸汽锅炉在实际使用中，会添加某些化学物品以防止或减少水垢的产生，这就导制了产生的蒸汽也含有这种化学成分，直接使用这种蒸汽用来加湿，将会对空间造成二次污染，这时候我们就需要采用蒸汽转蒸汽的方式，利用不洁的蒸汽作为热能来加热纯净的水，即可得到洁净的蒸汽。

Skid wooden box parametric design system was designed by using Visual Basic and Access, based on SolidWorks. The establishment of databases and standard model bases as well as parametric design procedures was introduced. The function of the system was illustrated by specific examples. The system can generate qualified skid wooden boxes by inputting basic parameters. Automatic wooden box design was realized.

利用Visual Basic语言，并结合Access数据库，对SolidWorks软件进行二次开发，开发了滑木箱参数化设计系统详细介绍了数据库、标准模型库的建立以及参数化设计过程并通过实例展示了系统的具体功能，用户只要输入基本参数，系统即可生成符合要求的木箱，实现了木箱设计的程序化、自动化。

Substation automation is the secondary substation equipment (including measuring instruments, signal systems, relay protection, automatic devices and remote devices, etc.) through a combination of functions and optimize the design, use of advanced computer technology, modern electronic technology, communication technology and signal processing technology, on all major substation equipment and transmission and distribution lines of automatic monitoring, measurement, automatic control and computer protection, and integrated communications and scheduling automation features.

变电站综合自动化是将变电站的二次设备（包括测量仪表、信号系统、继电保护、自动装置和远动装置等）经过功能的组合和优化设计，利用先进的计算机技术、现代电子技术、通信技术和信号处理技术，实现对全变电站的主要设备和输、配电线路的自动监视、测量、自动控制和微机保护，以及与调度通信等综合性的自动化功能。

Three-layer tissues model, which is consisted of thin skin, fat and the semi-infinite muscle, is adopted.

该方法为一种有效的正问题计算方法，可直接应用于需要利用二次磁场信息反演有耗媒质分布的正问题计算。

Secondary ion emissions from carbon nanotubes under bombardments of MeV Si and Si2 clusters are measured by using TOF.

利用飞行时间法研究了碳纳米管在不同能量的Si和Si2团簇离子轰击下氢二次离子的发射。

Finally, based on the studies above, the characteristics of pantograph/catenary are analyzed and the active pantograph is modeled. By using the linear quadratic optimal control law, the design objective is to minimize the performance index, which is a function of the state variables representing the pantographs dynamic characteristic and the active control force. The control system is designed considering the complete state feedback.

最后，在此基础上，分析了受电弓／接触网系统的工作特点，建立了受电弓主动控制系统的数学模型，利用线性二次型最优控制策略，以给定性能指标为最小值为设计目标，性能指标为表征受电弓动力学特性的状态变量和主动控制力的函数，考虑了完全状态反馈的情况，进行了控制系统的设计。

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。