In sna , the transformation of data by packing two characters in a byte so as to take advantage of the fact only a subset of the allowable 256 characters is used ; the most frequently sent characters are compacted 在系统网络体系结构( sna )中使用的一种数据转换法,即把两个字符装配在一个字节之中,这样就可以利用在允许使用的256个字符中只使用了其中的一个子集这一点,来把最常发送的字符进行压缩。
In sna , the layer within a half session that routes fmd requests and responses to particular nau services manager components and that provides session network services or session presentation services , depending on the type of session 在系统网络体系结构( sna )中,部分话路内的服务层,负责把操作管理数据( fmd )请求和响应邮送给特定网络可寻址单元( nau )服务管理程序,并提供话路网络服务或话路表示服务,具体是哪种服务依话路类型而定。
In view of henan province ’ s typifying for the five provinces in central china in regard to rural industrial development , this paper chiefly examines the enterprise networks in three clusters in henan province , that is , the steel office furniture cluster in pangcun town , yanshi city , the steel measuring tape cluster in nanzhuang village , yucheng county and the hair products cluster in xuchang county , xuchang city , by means of the social network analysis ( sna ) , transaction - cost analysis ( tca ) and space - time coupling approach . it explores the forms , process , evolution and performance of the networks among enterprises and other actors in clusters in rural areas of central china 鉴于河南省乡镇企业发展在中部农区的代表性,本文运用社会网络分析法、交易成本分析法及时空耦合法,着重对河南省偃师市庞村钢制家具、虞城县南庄村钢卷尺和许昌县发制品三个产业集群中的企业网络进行个案研究,从而探讨中部农区产业集群中企业的结网形式和结网过程、企业网络的演化机理以及它是如何提高企业和区域竞争力的。
From the study on the theory method and pilot calculation of chinese industry environmental protection physical accounting and monetary accounting , we achieve the adjust ion of the industrial added - value and gdp accounted by the present sna , and educe a groping conclusion of industrial cost is the 19 . 3 % of gdp 通过对我国工业环保活动实物量核算和价值量核算的理论方法的探讨和试算研究，本文实现了对现行sna核算出的工业增加值和gdp的调整，得出了工业环境成本占gdp的19 . 29这一探索性的结论。
Complicated the characteristic of the sna method and the hierarchical evaluation method , the shem can quantify the survivability evaluation system , and provide the foundation of quantitative system security evaluation . 3 . the iahp and shem are applied to the survivable evaluation of a news website 该方法综合了sna方法和层次化安全评估方法的优点,能够量化系统生存性评价体系,为量化系统的安全性评估提供了基础; 3 .采用改进的ahp方法与生存性分层评估方法( shem )对某新闻网进行了安全评估。
