Furthermore, their tracks, source lands, incidences and weather types are determined in assistance with GIS.
利用1971～1999年的地面气象月报和地面天气图资料，系统分析了我国浮尘、扬沙、沙尘暴天气的时空分布特征，研究了沙尘暴的源地、移动路径、影响范围和天气类型，分析了地面气象要素和覆被状况对沙尘暴的影响，结果表明：1971～1999年，浮尘、扬沙、沙尘暴天气的年代际和年际变化均呈明显下降趋势，这一趋势与大风日数存在很好的一致性，年际相关系数达0。
Discussion on the ground source heat pump technology
浅议地源热泵技术的应用
The U tube heat exchanging performance of ground source heat pump is very important for central air-conditioning system using ground source.
地源热泵U型埋管系统的换热性能对地源中央空调的运行效率非常重要。
Water quality evaluation and reasons analysis of pollution for groundwater sources in Qingdao;
青岛市地下水源地水质评价及污染原因分析
Based on the characters and the actual conditions of groundwater sources in Shunyi County,the index system of vulnerability assessment of groundwater sources in Shunyi was established.
从顺义区地下水源地的特点和实际情况出发,建立了顺义区地下水源地脆弱性综合评价指标体系,并基于该指标体系采用灰关联度评价方法对顺义区地下水源地进行脆弱性综合评价。
In situ algae control in water source areas of eutrophicated lakes and reservoirs;
富营养化湖库水源地原位控藻技术研究进展
Analysis on water quality of water source area for the extension project of Langshan waterworks in Nantong City;
南通狼山水厂扩建工程取水水源地水质分析
Water quality protection in water source area of Middle Route Project of South to North Water Transfer;
南水北调中线工程水源地的水质保护
Conservation and sustainable utilization of Ruichang' wetland resources;
瑞昌市湿地资源保护与可持续利用的思考
Spatial-temporal variation and protection of wetland resources in Xinjiang;
新疆湿地资源时空变化特征及其保护
A study on wetland resources conservation and utilization in Dongting Lake;
洞庭湖湿地资源保护与利用
Preliminary study of the transforming urban resources to capital——with a consideration of Xi an soil resource transformation;
城市资源转化为资本的初步研究——兼对西安市土地资源转化的思考
The emphasis of this thesis is on the two aspects of its soil resource, both in quantity and quality.
本文主要从土地资源的质量和数量两大方面分析了山东省土地资源利用中存在的问题 ,并提出相应的对
It is an important subject nowadays on agriculture researches that how to protect soil resource and get its sustainable development.
从云南省金沙江流域的热区土地资源现状出发，揭示了土地可持续利用中存在的主要问题，即生态环境继续恶化，水土流失严重；不合理的土地开发利用及耕作，加剧水土流失和土地退化；劳动者素质低下，环境及土地保护意识薄弱。
Dagu River Area-source Pollution of Agricultural Fertilizer and Its Countermeasure
大沽河水源地农肥面源污染及其对策
The Exploration on the Regionalization of Agriculture Ecological Climatic Resources in LiaoYuan Quarter
辽源地区农业生态气候资源区划探索
Exploration and Development of Urgent Groundwater Source in Tianjin;
天津地区应急地下水源地勘查与开发
ground system for earth resources satellite
地球资源卫星地面系统
discharge point
地下水流出地面的泉源
The subsoil resources occur at widely scattered locations.
地下的资源散布各地。
To stream or flow continuously or profusely.
涌流源源不断地大量地流出
This telemetry streamed back to earth.
这种遥测系统源源不断地送回地面。
The source of earthquake waves-the site beneath the surface where the disturbance originates-is known as the focus.
地震波源--地表底下产生扰动的地方--称为震源。
Continuous energy flows include geothermal, solar, and tidal energy.
源源不绝的能源包括地热，太阳能和潮汐能。
An Analysis on the Conflict Between Land and Mineral Resource in Resource Based City;
资源型城市土地资源与矿产资源冲突问题分析
Rolling back resiliency sources for local source
正在为本地安装源回滚恢复性源文件
Updating resiliency sources for local installation source
正在为本地安装源更新恢复性源文件
Profits are flowing out of the country.
利润源源不断地流向国外.
Letters of complaint poured in (to head office).
投诉信件源源不断地寄到（总部）.
International Mediterranean Congress on New and Renewable Sources of Energy
新能源和可再生能源国际地中海大会
Adding resiliency sources for local installation source
正在为本地安装源添加恢复性源文件
Labor forces are abundant, but land resources are scarce.
1劳动力资源丰富，但土地资源稀缺。