A scenario is a grouping mechanism “方案”是一種分組機(jī)制。
Grouping mechanism that evaluates to true if expressions contained inside evaluate to 如果內(nèi)部包含的表達(dá)式的計(jì)算結(jié)果為
Principle and dimension comprehensive method of a kind of new cam - link grouping mechanism 一種新型內(nèi)凸輪連桿組合機(jī)構(gòu)的原理與尺度綜合
Rcbac model introduces the context information and the group mechanism to the access control policies . in rcbac , the context information is used to control the user assignment and permission assignment dynamically and the group mechanism is used to simplify authorization further . thus , rcbac can implement the fine - grained access control and satisfy the enterprise ’ s demand for the unified resource access control 在對rbac的一些改進(jìn)模型分析研究的基礎(chǔ)之上提出了基于角色和上下文的訪問控制模型( roleandcontext - basedaccesscontrol , rcbac ) , rcbac模型將上下文信息和組化機(jī)制引入到訪問控制策略中,利用上下文信息動態(tài)地控制用戶分配和權(quán)限分配,利用組化機(jī)制進(jìn)一步簡化授權(quán),實(shí)現(xiàn)了細(xì)粒度的訪問控制,滿足了企業(yè)統(tǒng)一資源訪問控制的需求。
Based on analyzing the achievement ' s foundation of country ' s enterprises development in our country , it is pointed out the problems of country ' s enterprises in developmental process , and it is put forwards reorganization mechanism and optimizing countermeasures of country ' s enterprises spatial development which evaluating industry guide , constituting reorganization policies , constructing groups mechanism , actualizing spatial reorganization and pushing rural urbanization 摘要在深入分析我國鄉(xiāng)鎮(zhèn)企業(yè)發(fā)展成就的基礎(chǔ)上,指出其中存在的問題,并提出生態(tài)脆弱區(qū)鄉(xiāng)鎮(zhèn)企業(yè)空間重組機(jī)制和重組對策:進(jìn)行產(chǎn)業(yè)導(dǎo)向評價(jià),制定重組政策,建構(gòu)企業(yè)簇群,實(shí)施空間重組,有序推進(jìn)農(nóng)村地區(qū)城鎮(zhèn)化。