This paper calculates firstly the exchange coefficients between the common in groundwater and the absorbed pb 2+.
本文首先计算了地下水中常见阳离子与被吸附Pb2 +的交换系数 ,在此基础上利用实际地下水水质资料计算了天津市浅层地下水含水介质吸附阳离子的当量分数 ,并利用吸附Pb2 +的当量分数估算了含水介质吸附Pb2 +的量及地下咸水中Pb2 +的浓度的增大
In the paper,the range of taking values of heat transfer coefficient that the heat transfer of concrete is immediately touched with air under the affection of velocity and wind is produced converion of quantity of heat in the course of pouring,analyses and reasearch the all kinds of different the heat transfer coefficient.
热交换系数源于牛顿冷却定律,是混凝土温度场控制技术理论和建筑热工物理学上的重要参数,对揭示温度场的内在本质关系和变化规律有重要的意义,本文研讨混凝土浇筑过程与外界空气直接接触产生热交换时的换热系数的取值范围及风速对热交换系数所产生的影响,分析研究各种热交换系数和数学模型,指出理论上求解的困境,提出应加以注意的若干问题,根据传热学原理,利用传热系数的计算公式间接类比转化求得一个新的计算热交换系数的公式,探讨了相似理论和量纲分析原理及实验方法建立可求解热交换系数数学模型的可能性,为混凝土温度场效应分析正确选取热工参数的取值提供理论依据。
The research based on this method on Zhangye City,which is located in the middle reaches of Heihe River basin,has calculated the direct and indirect water consumption coefficients,the water consumption multiplier and the water transaction coefficients of various industrial sectors.
引入投入产出方法作为分析工具,以黑河流域中游的张掖市为例,计算了各产业部门的直接用水系数、完全用水系数、用水乘数以及各产业部门间的水交换系数。
Identification of Heat Exchange Coefficient of the Arctic Sea Ice and Computation of Two-Dimensional Velocity of Flow;
北极海冰热交换系数的辨识与二维流速的计算
For identical data difference interchange coefficients will be obtained.
对同一数据来说，将得到了不同的交换系数。
international seismic data exchange system
国际地震数据交换系统
Data Interchange for Shipping Companies
航运公司数据交换系统
Trade Electronic Data Interchange System
贸易电子数据交换系统
Automated Data Interchange Systems Panel
自动数据交换系统专家小组（数据交换系统小组）
The Design and Implement of Data Exchanging Platform for Transportation System
交管系统数据交换平台的设计与实现
Key Techniques of Data Exchange Based on Relational Databases;
基于关系数据库的数据交换技术研究
data switching
数据交换,数据转换
Model Research on CITIS System Data Exchange Based on Web Service;
基于Web Service的CITIS系统数据交换模型研究
The Research Heterogeneous Data Exchange System Based on BizTalk;
基于BizTalk的异构数据交换系统的研究
The Research on Applying XML to Data Exchange System;
XML在数据交换系统中的应用研究
Business Exchange Model in ERP System of Group Company;
集团公司ERP系统业务数据交换模型
Research on Data-Exchange System in Web Service-Based;
基于Web Service的数据交换系统
The coefficient quality of non-commutative law (x_1+x_2+…x_m)~n;
不满足交换律(x_1+x_2+…+x_m)~n系数的性质
Design and Realize of Data Change System Based on XML
基于XML数据交换系统的设计与实现
Research on Agent-based complicated data-exchanging framework
基于Agent的复杂数据交换体系的研究
Neutral semantic feature data exchange upon heterogeneous CAD systems
异构CAD系统间中性语义特征数据交换
Research on data exchange of distributed system in different environment
异质环境下分布式系统数据交换研究