By applying carefully the database functions of transaction handling and concurrent access, the platform guarantees data reliability and data integrity in multi user network environment.

该系统还利用了数据库自身的事务处理与并发控制功能，解决了在多用户网络环境下的数据完整性和可靠性问题。

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Therefore, to propose a convenient and effective Distributed database backup and recovery Mechanism on multi-platform become the exigent needs of corporate users.

因此，提出一种快速有效的多平台分布式数据库备份恢复机制成为当前企业用户的迫切须要。

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NET platform, database technology and FEA technology, the developing process, implementing methods and key technology of multi-platform CAD technology in which VB.

NET平台开发技术、数据库技术、有限元技术，以直齿及锥齿为例详细介绍了运用VB。

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