All of that volunteered geographic information ( VGI as Michael Goodchild calls it) should be brought into geographic information systems so that we can understand it.

This paper mainly emphases how to make the VGI as an effective data source of professional survey department to detect the changed for updating.

本文的研究重点在于如何将自发地理信息作为专业测绘部门发现变化和数据更新的有效数据来源。

Vacuum gas nitriding ( VGN) technology was adopted and evaluated for well casing to against the corrosion in Changqing oilfield.

针对长庆油田油井套管腐蚀问题，采用并评价了真空渗氮工艺。

Energetically developing hydrogenation units for deep processing VGO and residual oil

我国蜡油及渣油深加工应大力发展加氢型装置

The operation of vacuum residue hydrodesulfurization unit imported by Qilu Petrochemical Company and FCCU which processes the obtained VGO and residue as mixed feedstock was discussed.

介绍了齐鲁石化公司引进的减压渣油加氢脱硫装置生产及催化裂化装置掺炼其产品蜡油和渣油的情况。

Study on the reaction mechanism for Daqing VGO over acid catalyst

大庆蜡油在酸性催化剂上反应机理的研究

The important factors influencing the effluent VGP of UASB-R I were the same as that of UASB-R II.

UASB-RⅠ和UASB-RⅡ的出水DNP和%CH4的影响因素的主次顺序则是一致的。

Study of secular variation of geomagnetic field by means of VGP

用虚地磁极（VGP）方法对地磁场随时间变化的研究

The paleomagnetic declination, inclination, VGP and relative intensity of three regions represent both individual features and features in common.

结果表明，上述三区古地磁场的磁偏角、磁倾角、虚地磁极迁移以及相对强度既存在各自的局部特性，又有着共同的整体特征。

Objective To observe the effects of cholinergic agonists on intracellular calcium concentration ( [ Ca 2+] I) of isolated vestibular hair cells ( VHC) from the guinea pig and the effects of gentamicin on it.

目的通过观察胆碱能受体激动剂对离体前庭毛细胞内钙离子浓度的影响，以探讨前庭毛细胞膜所存在的胆碱能受体分型及庆大霉素对钙离子通道的阻断作用。

Postoperative regurgitation, stenosis, and immune rejection occur, lead to a pipeline of early loss of power, need to double or multiple surgeries to replace the VHC.

术后常因发生反流、狭窄及免疫排斥而导致管道早期失功，需二次或多次手术更换VHC。

Objective: This study is to review the early experience of cryopreserved valved homograft conduit ( VHC) for congenital heart disease in children.

目的：报告应用同种带瓣管道（VHC）在儿童先心病治疗中的经验。

Conclusion: The satisfactory results indicate that VHC is the ideal material for the treatment of congenital heart disease in children.

结论：本组结果表明VHC是儿童先心病右室流出道重建的理想材料。

VHE& A Service-provided Method in Future Heterogeneous Network Environment

VHE&未来异构网络环境下的业务提供方法

Furthermore, some policies are proposed to optimize the implementation of VHE service platform.

另外，首次细化了用于实现VHE概念的代理粒度，同时提出了一些策略，优化VHE业务平台的实现。

Analysis of Agents Granularity's Effect on the Performance of Agent-based VHE

基于代理技术的VHE中代理粒度对网络特征的影响

Implementation of VHE Subsystem in Intelligent Mobile Service Platform

智能移动业务平台中VHE子系统的实现

Research on VHE and its Device Management Technology

VHE中设备管理技术研究

This paper first introduces the basic concepts of VHE and its architecture model.

首先介绍了UMTS中VHE的基本概念及其结构模型；

Study and Implementation of Service Present Mechanism in VHE Systems

VHE系统中业务呈现方式的研究与实现

A CPU that is assembled Micro-Controller and Digital Signal Processor and Hardware-based Video Encode/ Decode Module ( [ MC+ DSP+ VHM]) is used for the hardware solution and embedded linux operating system for the software solution.

提出了嵌入式无线可视门铃系统解决方案，采用集微控器+数字信号处理器+视频编解码模块于一体的CPU（[MC+DSP+VHM]）为硬件方案以及采用嵌入式linux操作系统为软件方案。