This paper analyses the distribution regularity of indium in the zinc re-distillation system and describes several indium enrichment methods such as overall enrichment in echelon and diffusion enrichment;by adopting them,the recovery rate of indium from the re-distillation system has been increased by 15.
分析了铟在锌精馏系统中的分布规律,介绍了梯次综合富集、扩散富集等富集铟的方法,综合采用这些方法后,精馏系统铟的回收率提高了15。
Firstly, because of transport making cost, we name the random part of the going-out cost function transport transaction cost.
本文在国内外关于交通基础设施经济影响研究状况的基础上,研究了基于轻轨聚集扩散作用的地区产业结构变动,对轻轨的经济影响进行了进一步的研究,探求了轻轨聚集扩散作用的形成机理,讨论了轻轨较新线聚集扩散作用对沿途地区产业结构的影响程度,并这种影响作出了评价。
Study on the Dynamic Shift of Beijing Convergence-Diffusion Tourism Flow Equilibrium Point
北京入境集聚扩散旅游流平衡点转移规律研究
GROWTH PATTERNS AND AGGLOMERATION-DIFFUSION CHARACTERISTICS OF CENTRAL CITIES IN JIANGSU;
20世纪90年代江苏省中心城市的增长模式和集聚扩散特征研究
The Space Congestion-Diffusion Theory in Western Countries and the Diffusion of Beijing City s Function;
西方空间集聚—扩散理论及北京城区功能的扩散
The Research about Diffusing Effect of Technology Innovation in Industry Gather;
产业集聚中的技术创新扩散效果研究
THE ANALYSIS OF THE DYNAMIC MECHANISM OF ECONOMIC OF AGGLOMERATION AND DIFUSSION IN SMALL TOWNS;
小城镇经济集聚与扩散动力机制分析
The Agglomeration and Dispersion of Foreign Investment and Its Shift Point;
广东外资集聚—扩散及其转折点研究
The Research of Centralization and Diffusion Laws To the Economic Central City;
经济中心城市的集聚与扩散规律研究
Agglomerate Effect and Diffusion Effect of Famous Columns
名牌栏目——集聚效应与扩散效应研究
The traffic trunk line is a basic premise of the development of TEB.
工业集聚-扩散的波浪式运动是经济在空间上扩散的一个基本模式。
Empirical Research about Agglomeration and Dispersion of Major Cities in China;
中国城市集聚与扩散转换规模的实证研究
Industrial Clustering,Innovation Diffusion and the Exploring of the Operation Mode of the "Multi-garden Park";
产业集聚、创新扩散与“一区多园”运行模式探讨
SPATIAL AGGLOMERATION AND DISPERSION OF FOREIGN DIRECT INVESTMENT SINCE THE 1990S INJIANGSU PROVINCE;
1990年代以来江苏省FDI的空间集聚与扩散
A Research into the Stratege for Industry Grouping and Spreading in the Downtown Areas of Chongqing;
重庆主城区产业聚集与扩散及其对策探讨
Enhance concentration and diffusion of central cities in Liaoning;
增强辽宁中心城市的集聚力和扩散功能
The Impacts of Trade Agglomeration in China's Eastern Coastal Areas on Technological Diffusion Effect
东部沿海地区贸易集聚对技术扩散效应的影响
During the Industrial Society period, a city mainly plays the role of agglomeration and expansion.
在工业社会时期，城市功能发挥作用的形式是聚集效应和扩散效应。
The accumulation time and the distribution features of gas hydrate are related with the different diffusion system.
水合物的聚集时间和分布特征与不同的扩散体系有关。
The Expansion and Application of Technology Diffusion Model through Human Capital and Trade Agglomeration;
人力资本与贸易集聚对技术扩散模型的拓展与应用