The two-level deductive database is the amalgamation of a conventional database system and a PROLOG system, which is divided into two levels, the database level and the logic program level.
二级推理数据库是传统的数据库系统和PROLOG系统的结合，它可分为二级：数据库级及逻辑程序级。
A JDO transaction instance is the vehicle for carrying out a unit of work, according to the conventional definition of a transaction, against a persistence storage system (or database).
依据对交易的传统定义，一个JDO交易示例就是执行单元操作的载体，执行的基础是持久性存储系统(或者数据库)。
Two-level deductive database system is the amalgamation of conventional database and PROLOG system, which is divided into two levels: database level and inference level.
二级演绎数据库系统是一种结合一般数据库系统与PROLOG系统特点的演绎数据库系统，它分为数据库级和推理级两个不同的层次。
Based on the analysis of conventional off line calibration tools, a new online calibration system with "double database range" has been developed, which is composed of the following three parts.
分析了现有离线标定系统的不足，提出“双数据区”实现在线标定的设计方案，并进行了标定系统软件开发。
Based on the analysis of conventional off line calibration tools, a new online calibration system with "double database range" has been developed, which is composed of the following three parts.
分析了现有离线标定系统的不足，提出“双数据区”实现在线标定的设计方案，并进行了标定系统软件开发。
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