Introduce concurrency control method based on transaction instance lock set and posterior sub-transaction type set.

给出了基于事务实例锁集和后继子事务类型集的多事务多实例并发运行算法。

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As the system of interface-information transaction between every sub-system, the Message Midware is very important in Emulation system of the High-speed Railway.

消息中间件作为高速铁路综合调度仿真系统各子系统间的接口信息处理系统发挥着重要作用。

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Administrators, including sub-system administrators to register and log on to amend the basic information, commodity management, membership management, transaction management function.

管理员子系统包括管理员登录注册及基本信息查询修改，商品管理，会员管理，交易管理等功能。

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Administrators, including sub-system administrators to register and log on to amend the basic information, commodity management, membership management, transaction management function.

管理员子系统包括管理员登录注册及基本信息查询修改，商品管理，会员管理，交易管理等功能。

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