迁移问题

Up to now, people are still not clear on many problems, such as how does the contamination move and scavenge itself in lakes, and under what conditions will the pollutant that has been scavenged pollutes the water body again.

人们至今还无法彻底弄清楚污染物在湖泊水体中是如何迁移转化的，污染物又如何的发生自净化作用，又会在什么样的条件下对湖泊产生二次污染等一系列问题。

Indeed, the absence of familiar mega-environmental issues relating to logging, mining, agriculture,wildlife protection or the displacement of forest-dwelling indigenous peoples, coupled with the irrelevance of federal-state or centre-periphery complications, make Singapore fairly unique in terms of environmental governance and regulation.

事实上，对大与伐木、采矿、农业、野生动物保护、迁移森林居民土著人有关的大型环保问题的缺乏认知，再加上相关的联邦或州中心周边的并发症，使新加坡环境治理和管理变的相当独特。

Based on the 70 axial force monitoring data on 64 manometers in south tower piles foundation of JiangYin Bridge, the force transferring mechanism of socketed pile group using friction ineffective treatment at the top 20 meters was analyzed. The surcharge problem, the course of stress adjustment and the transition of the slip surface on which was easiest to slide in pile group were discovered.

根据江阴大桥南塔墩基桩轴力64个测点的70次观测成果，分析了桩周摩擦失效嵌岩群桩的传力机理，揭示了群桩中的超载问题和应力调整过程以及最不利滑面的迁移；采用理论计算、定性评价和数值分析相结合的方法首次建立了基桩轴力安全监控模型。

In the heap leaching process of uranium ores some problems often occur,such as permeability declining and/or the blockage of penetrating holes,which are caused by muddled ores,expanded ores and the migration of fine particles.

在某些铀矿堆浸工艺中，由于矿石的泥化、膨胀和细颗粒迁移等原因，经常出现通道堵塞、渗透率低的问题，为此，提出了添加助渗剂的方案。

Estimating with precision the scale of such in-migration is impossible. Official statistics indicate an urban working migrant population of more than 90 million, but the true number may be as high as 150 million.

这表明政府认识到仅仅依靠将农村人口迁移到城市无法解决农村的经济和社会问题，城市化发展应辅以加强农村基础设施的改善，尤其是改善压力沉重的农民的经济和福利条件。

In this paper, we mainly introduce the growth methods of single crystals, various techniques for device fabrication, mobilities of these devices and influence factors. In addition, the prospect and problems of organic single-crystal transistors are discussed.

本文主要介绍了有机单晶的生长方法、有机场效应器件的各种制备技术、器件的迁移率及其影响因素，并对有机单晶场效应晶体管的发展前景和面临的一些问题作了简要的讨论。

However, how to develop and utilize the vast wastelands formed after emigration has become a central oroblem concerned by people.

但如何开发利用迁移后形线的大片荒芜土地，就成为人们关注的热点问题。

As the current methods of tracing Agents' positions exist shortages in aspects of spendings of lookup and storage or system security, a method of tracing Agents' positions is provicled to work out the problem of tracing Agents' positions and to deal with the information in the process of Agents' transfer.

由于现有的Agent位置追踪方法在查寻开销，存储开销以及安全性上存在不足，因而提出了一种Agent位置透明通信的方法，解决了Agent位置追踪问题和Agent迁移时的消息处理。

Low level radwaste disposal problems are complex. Many important issue, such as radionuclide migration in the geosphere, must be carefully evaluated before making decision. This project will explore the use of a hydrogeological decision support system for solving these complex problems. The system will integrate hydrogeological analysis tools, geographic information system, mathematical models, stochastic and statistic methods, graphical interface, and decision system. By using the system, it is expected that many different alternatives can be efficiently analyzed and evaluated, and results can be presented much more effective to decision makers, while compared with the conventional presentation. Basing on the prototype system developed in the last two years, this project will integrate more analysis tools and improve the functions of the system.

中文摘要低放射性废料处置所牵涉之问题甚为广泛且复杂，其中又以放射性核种於地下水中迁移所造成之风险性分析最为重要，一般而言，一个水文地质决策支援系统将结合水文地质、地理资讯系统、数学模式、序数及统计、图形介面、优化及决策分析等理论及工具，方能使该系统迅速分析各种不同方案，并以最有效方式将分析结果呈现於决策者；因此，本计画预计延续八十二年至八十三年间，初步完成之整合风险分析模式之决策分析系统刍形，并於其基础上继续整合及发展一些关键技术及工具，以增加系统必备之功能，使其系统更趋完善，达到实用之目的。

Ve imagination to reality in her works, turning the issue of migration into a fairytale, hoping that the fairytale-like paradises are not lost forever in the real world.

她在作品中天真地幻想着一个自言自语的世界，把迁移的问题变成美好的童话，只是不希望在现实世界中失去人类的童话般的乐园。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。