...管理 ; 安全建模 [gap=1006]y words: OO; DB Switch; Model Evolvement; Affair Management; Edition Management; Safe Modeling ...
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This paper first shows the merit of OODBS through comparing the deficiency of traditional DB,secondly introduces seven key technology of OODBS: DB switch,model evolvement,index,affair management,view realization,edition management,safe modeling,finally presents several constructing methods of OODBS and expects the future of OODBS.
通过对比传统数据库的不足来说明面向对象数据库的优点，讲述面向对象数据库中的七种关键技术：数据库转换﹑模式演进﹑索引﹑事务管理﹑视图实现﹑版本管理﹑安全建模，介绍面向对象数据库的几种实现方法和发展前景。
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This paper has discussed two aspects concerning the following mode of vehicle ACC, one is the safe distance of the following mode, the other is the control modeling of this mode.
本文讨论了汽车自适应巡航控制跟随模式的两个问题，一是跟随模式安全车距的确定，二是跟随模式控制模型的建立。
Based on the calculation and modeling, a safe feasible plan for dumping slag is obtained by modifying the stacking structure of the slope.
根据计算结果，通过改变堆放结构，设计出了安全可行的废渣排弃方案，并通过现场实验对排弃方案进行了验证。
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