IrLAP是负责IrDa设备发现、重传以及流控制的链路存取协议层。
IrLAP is the link accesses protocol layer responsible for IrDa device discovery, retransmission, and flow control.
为了减少在计算和存档数据流的过程中对昂贵的存档数据的存取，分析了聚集数据查询的特点，并引入了聚集查询语言和聚集查询重写方法。
To reduce the expensive access to archive data, the characteristics of aggregate data query were analyzed, and the aggregate query language and its rewriting method were proposed.
在任务节点中引入RBAC机制对角色属性进行约束以实现对工作流的安全存取控制。
Injecting RBAC mechanism into task nodes to restrict the role attribute can secure the access control of the workflow.
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