VB, VGF and VCZ are the feasible techniques to grow such GaAs crystals.

An investigation is carried out on the problem involved in 4D variational data assimilation ( VDA) with constraint conditions based on a finite-element shallow-water equation model.

考察了具约束条件的四维变分资料同化问题，首先引入解决该类问题的一般理论与方法，然后用有限元浅水模式对具高频重力波约束条件的四维变分同化问题进行数值试验。

Separating segments in a "semidynamic" manner, VDA is programmed with basic rules and with understanding of some protocols.

VDA以半动态的方式把段分开，用基本规则和对某些协议的理解对VDA编程。

It is a parallel system and load balancing affects its performance mostly, but VDA is heterogeneous.

虚拟盘阵系统是一种并行系统，负载平衡对其性能影响非常大；

VDA dynamically identifies different protocol segments in a packet.

垂直数据分析（VDA）动态识别一个包中不同的协议段。

Initial Clinical Experience of VDD Pacing in Patients with Obstructive Hypertrophic Cardiomyopathy

VDD起搏器治疗肥厚性梗阻型心肌病临床初探

Conclusion: VDD pacing is an effective new method to treat patients with HOCM.

结论：VDD起搏植入简便、房室同步功能稳定，对HOCM患者不失为一种新的有效的治疗方法。

Results: VDD pacing system was successfully implanted in 25 patients.

结果：25例均成功置入VDD起搏系统。

Clinical application of a single lead VDD pacing system

单根电极VDD起搏器的临床应用

The force and torque for every blanket module was obtained to assess the safety of blanket system under VDE.

通过计算，得到了各个位置的包层模块的力和力矩，可用于评估该事故下包层系统的安全性。

A method for multivariable system identification based on the canonical stochastic VDE innovation representation and the modified durbin's algorithm

基于规范形随机VDE新息表示和新息修正算法的多变量动态系统辨识方法

Chapter 3 analyzes the pragmatics features of the phrase "Vde/ bu C".

本章旨在对能否式V得/不C的语用特点进行研究与分析。

How to Apply for VDE Certification for Wire& Cable and Plugs

如何办理电线电缆和插头的VDE认证

Northern blot showed that the expression of VDE achieved maximum in mature green leaves.

Northern杂交表明VDE基因的表达水平成熟绿叶片中达到最高。

All of them are made under IEC and VDE international standard.

所有产品均采用IEC和VDE国际标准设计制造。

Whitening Residual Error Technique to Determine the Structure of VDE

辨识VDE结构的白化残差技术

To observe the clinical trends of rheumatic fever and rheumatic valvular disease of heart ( VDH), the clinical date including incidence, features, treatment, prevention and recurrence were analyzed in 85 children with rheumatic fever and rheumatic VDH which were diagnosed during 1990 years.

为观察儿童风湿热及风湿性心瓣膜病临床动态变化趋势，分析本院90年代诊治的85例风湿热及心瓣膜病发生状况、临床特点和治疗预防复发情况。

On the center of vacuum drying equipment with hot air, VDH, the structure, main technical specification, drying mechanism of the equipment and the customer value are emphatically described in the paper.

本文以VDH型真空热风干燥设备为核心。着重论述了该设备的结构特点、主要技术性能、干燥机理以及用户评价。

Vacuum-hot air drier ( abbreviated as VDH) is one of the modern technique used in the line of electrical engineering.

真空热风干燥简称VDH，它是应用于电工行业中的一种新兴工艺技术。

New Development of Vacuum Drying Equipment with Hot Air, VDH

真空热风干燥设备（VDH）的新进展

Development and Application of Electric Precipitator with Large Pole Spacing and High Voltage The Long Spacing VDL

大极距、高电压电除尘器的研制与应用