So many factors can be involved in the occurrence of GER and DGER.

The feature of DGIS is huge amount of space and information data, complicated function of management and query, the requirement of system openness and the tight combination with DMS and SCADA, etc.

DGIS具有空间数据和资料信息量大，管理查询功能复杂，系统开放性要求高，同配电管理系统（DMS）、SCADA系统结合紧密等特点。

At the same time, the DGIS can be applied in many fields, such as agriculture, forestry, ocean, environment, traffic, communication, urban construction, education and military, etc.

同时，分布式地理信息服务的应用范围非常广泛，可以应用于农业、林业、海洋、环境、交通、城市建设、通讯、新闻媒体、教育以及军事等几十个领域。

ESRI corporation pointed out that Distributed Geographic Information Services ( DGIS) is one of two important directions of GIS.

Esri公司指出，分布式的地理信息服务是未来GIS发展的两大方向之一。

Management of complex three-dimensional scene is the basis of3 dgis, three-dimensional landscape system and virtual reality.

三维复杂场景管理是三维地理信息系统、三维景观系统、拟现实的基础和核心。

Since DGIS service system is a very complex system, a prototype implementation based on Java technologies has been developed.

由于DGIS服务系统是一个非常复杂的系统，我们开发了一个简单的原型系统。

Application and Studying of Owner's Organizational Management in DGIS Project Management

DGIS项目业主方项目组织管理的应用和研究

The deep research of spatial query and spatial analysis algorithms in DGIS is done in Chapter Three.

第三章对分布式地理信息系统中的空间查询和空间分析算法进行了深入的研究；

Blood samples were drawn every hour during each course for determining plasma total ascorbic acid ( TAA), ratio of dehydroascorbic acid ( DHAA) to TAA ( DHAA/ TAA), vitamin E ( Vit E), malondialdehyde ( MDA) in both plasma and erythrocytes.

每小时取血标本测定血浆总抗坏血酸（TAA）、脱氢型抗坏血酸/总抗坏血酸（DHAA/TAA）、维生素E（Vit E）、血浆与红细胞丙二醛（MDA）。

The results show that HAb18 DHAQ BSA NP can target to bind human hepatoma cell effectively specifically, and has the specific action for killing off human hepatoma cells, which is decided by human hepatoma monoclonal antibody HAb18.

结果显示，HAb18-DHAQ-BSA-NP能有效地特异性靶向结合人肝癌细胞，且对人肝癌细胞具有特异性杀伤作用，这种杀伤作用的特异性由人肝癌单克隆抗体HAb18决定。

Results: A quantitative determination of DHAQ in hapatic targeting antineoplastic drug NGA& DHAQ was established.

结果：建立了NGA&DHAQ中DHAQ含量的测定方法。

The DHAQ EC MS was shown to be physically and chemically stable and its suspension is suitable for clinical use.

其混悬液适于临床应用。

A study of antineoplastic activity of DHAQ on human adenocarcinoma cells of lung, hepatoma and gastric cancer cells in vitro

DHAQ对体外培养人肺腺癌、肝癌和胃癌细胞抗癌作用的研究

The study of the syntheses of antineoplastic agent DHAQ

抗肿瘤药物DHAQ合成的研究

The dynamic osmosis method was used to study the drug release characteristics of DHAQ EC MS.

采用动态透析法研究了该微球的体外释药规律；

A Study on Natural Infection and Vertical Transmission of DHBV in Ducks

鸭肝炎病毒感染和垂直传播的研究

Model. The Establishment of an Animal of DHBV Infection

兰州地区鸭乙肝病毒感染动物模型的建立

Study on inactivation of DHBV in plasma by combination of short-wave ultraviolet rays and cross-linked starch iodine

短波紫外线与交联淀粉碘联用对血浆中鸭乙型肝炎病毒灭活的研究

Study on Evaluation of efficacy of inactivating hhbv using DHBV infection test

用鸭乙型肝炎病毒感染试验评价人乙型肝炎病毒灭活效果的研究

Group 2: DHCA for 45 min with retrograde perfusion via SVC;

2组DHCA45min，经上腔静脉逆行脑灌注；

Methods The rabbit model of CPB and DHCA was established by using in vivo cerebral microdialysis.

方法建立应用脑微透析技术的兔CPB和DHCA模型。