By analyzing multi-version database model ( called DBV) and CSCW ( Computer Supported Cooperative Work), some limitations on DBV are put forward in order to use it in CSCW. Then it is described how to create CSCW work model by using DBV technology. 通过对多版本数据库模型(DBV方法)和CSCW(计算机支持的协同工作)的分析比较,提出了面向CSCW的DBV方法的限制策略,描述了如何利用多版本数据库技术构造一个CSCW工作模型。
In order to apply the DBV approach in automatic examination system supported by computer, we make some restriction on DBV approach, then describe the method how to apply DBV approach in this system. 为了在计算机自动化考试系统中应用DBV方法,我们对DBV作了一些限制,然后描述了它的具体实施。
There is a linear relationship between the average dilution and dimensionless downstream distance; DBV jet has better effect of dilution as compared with the round jet of the same nominal diameter in coflows under the same volume of discharge. 平均稀释度和无量纲的沿程距离之间存在线性关系,相比于具有相同名义直径的同向流动环境中的圆射流,在相同排放流量条件下,DBV射流具有更好的稀释效果。
And the changes of circulatory blood volume ( CBV) and dynamic blood viscosity ( DBV) were also investigated. 同时探讨血容量与血粘度变化。
Using DBV to create CSCW working model 利用DBV构造CSCW工作模型
BVDV and classical swine fever virus, sheep border diarrhea virus and some unclassified virus belong to Flaviviridae. BVDV属于黄病毒科瘟病毒属成员,与其同属的有猪瘟病毒(CSFV)、羊边界病病毒(DBV)及部分未分类瘟病毒。