数据单元

DataObject用于表示流程所用的一个数据单元。

A Data Object is used to represent a unit of data used by a process .

在报告表格的数据单元中，添加另一个Text区域。

In a data cell in a table on the report , add another Text field .

基于非文件存储与多数据单元的城市管线GIS

Urban pipeline GIS based on non-file-storage and multi-data units

MAC服务没有保证服务数据单元的传输。

The MAC Service does not guarantee the delivery of Service Data Units .

每个数据单元有一个ID，以便用JavaScript更新表中的内容。

Each data cell has an ID so that the table 's content can be updated with JavaScript .

当协议出现更新时，协议解析器仍然可以根据修改后的XML配置文件重新配置自身结构并正确解析新的协议数据单元。

When the EDCP is updated , Protocol parser can still reconfigure its structure according to the revised XML configuration file and parse the new PDU correctly .

字节是C语言中所能处理的最小数据单元，因而对字节的处理（包括存取、运算等）有着位处理无法比拟的优点。

Byte is the minimum unit in processing of C language , so the byte processing which includes access and operation has an advantage which the bit processing can not catch up .

为给定服务数据单元计算的FCS依赖于介质访问控制方法。

The FCS calculated for a given service data unit is dependent on the media access control method .

AmazonSimpleDB存储较小型的数据单元，使用比较低密度的磁盘，为数据访问速度而优化。

Amazon SimpleDB stores smaller bits of data and uses less dense drives that are optimized for data access speed .

在海量存储系统（MSS）中，在存储位置与读／写位置间传送数据单元的一种机构。

In MSS , the mechanism that transports data cells between their storage locations and the read / write location .

在它发布之后，在浮点数据单元中发现了一个bug，需要每个操作系统创建者来编写特定代码解决这个问题。

After it was released , a bug in the floating-point math unit was discovered , requiring every operating-system maker to write special code to accommodate the problem .

NeilHudson将这个最基础的数据单元称为“FlexibleEntityModel，它对结构没有要求，你可以直接更新成对的name/value（这也就是最小的存储单位）”。

Neil Hudson describes this fundamental data unit as " a Flexible Entity Model , where no schema required and you can update name / value pairs ( which is the smallest unit of storage )" .

完整性保护的数据单元是加密之前的PDU头和PDU的数据部分。

The data unit that is integrity protected is the PDU header and the data part of the PDU before ciphering .

第二章首先介绍了SNMP协议体系的组成，主要介绍了管理信息库和协议数据单元的内容，然后分析了SNMP消息的工作机制和传输过程。

The second chapter firstly introduces the composing of SNMP protocol system , emphasizes the content of MIB and PDU , then analyses the work mechanism and transport course of SNMP messages .

本文从简单网络管理协议（SNMP）入手，着重对管理信息库（MIB）的结构、抽象句法表示法以及SNMP协议中的具体协议数据单元进行了分析。

This article analyzes the MIB ( Management Information Base ) structure , ASN . 1 ( Abstract Syntax Notation One ) and PDU ( Protocol Data Unit ) in SNMP .

并讨论了协议数据单元PDU对网络带宽资源的开销分析方法，以便于系统组网设计。

We also discuss the analyzing method for the expense of network transmission bands , which is the basis for designing DIS network .

设计了TEMP的协议数据单元，说明各类型报文的主要作用，并介绍了TEMP的工作流程。

Then , we design the protocol data unit of TEMP , explain the main function of various types of packets , and introduce the workflow of TEMP .

利用平均数据单元支持度解决了不同层支持度阈值应设置不同的问题，设计并实现了基于OLAP的多维多层关联规则挖掘算法。

By using the average support coefficient of Data unit , it solved the problem of different threshold of support coefficient at different levels , designed and realized multi-dimensional OLAP association rules mining .

本论文对pCB方案进行了理论建模。假定访问间隔时间和更新间隔时间均服从一般分布，得到了每个数据单元访问的平均通信开销和平均访问延迟的闭合解析表达式。

We analytically model the pCB scheme , and derive closed-form analytical formulae for the mean communication cost per data entry access and the mean access delay under a general assumption on distributions of the inter-update and inter-access times .

在典型的分布式交互环境中，环境信息动态更新是基于协议数据单元（PDU），它不提供数据可靠性传输保证。

In a typical distributed interaction environment , environment information dynamic update is based on Protocol Data Unit ( PDU ), which does not guarantee reliable message transfer .

然后针对链路接入控制层，研究了数据单元处理流程和基于IS-95A标准的改进；

Then the data unit processing and improvement of link access control ( LAC ) layer are investigated .

getUnit：返回数据单元

GetUnit : return the unit of the data

首先，论文对SNMP网络管理的基础理论及协议规范做了必要的介绍，包括管理信息结构、管理信息库、协议操作过程和具体的协议数据单元的定义格式。

Firstly , some theories and protocols about SNMP network management are introduced in paper , include SMI ( Structure of Management Information ), MIB ( Management Information Base ), protocol operations and definition formats of PDU ( Protocol Data Unit ) .

随着愈来愈多的网络协议和业务协议的投入应用，作为表示信息的抽象句法ASN.1，在表达协议数据单元PDU字段之间的依赖关系面临着很大的困惑。

With the increasing application of network protocols and service protocols , ASN . 1 , as an abstract syntax notation for information expression , faces great confusion in expressing the dependence relations among fields of PDU .

本文阐述了AOS的体制特点，分析其业务种类、业务等级、分层结构、数据单元结构、数据传输过程；

In this article , firstly , it analyzed the characteristic of AOS system , its data handling service , the grades of the service , the layered structure , the data unit structure , the data transmission process .

在本文中，我们利用两个帧聚合技术，即A-MPDU（MAC协议数据单元聚集）和A-MSDU（MAC服务数据单元聚合），来探讨MAC协议的性能改进。

In this thesis , we investigate the performance improvement of the MAC protocol by using the two frame aggregation techniques , namely A-MPDU ( MAC Protocol Data Unit Aggregation ) and A-MSDU ( MAC Service Data Unit Aggregation ) .

此外，物理层规范定义了两种物理层数据单元格式，但是研究者没有研究如何利用开销小的物理层数据单元来提高802.11b的容量。

Moreover , there are two kinds of PLCP ( physical layer convergence protocol ) PPDU ( PLCP protocol data unit ), but many researchers did not take full advantage of short PLCP PPDU to improve the capacity of 802.11b .

从应用角度讨论了分布式交互仿真（DIS）的协议数据单元PDU的类型、结构和格式等方面；并论述了PDU的设计方法，及与基于DIS体系结构的商业平台VRLink通信的实现。

This paper describes the type , structure and format of PDU ( Protocol Data Unit ) in DIS ( Distributed Interactive Simulation ) and discusses the designing method of PDU which can communicate with VR - Link , a commercial platform of network interface based on DIS architecture .

本文描述了MOTIS系统结构、功能模型和通信实体间的各种通信协议，以及在信息交换中使用的各种协议数据单元（PDU）的应用。

This paper describes the system structures , function models and communication protocols between the communication entities in MOTIS , introduces some protocol data units of different kinds used in information interchange and analyses the service elements and performance environment of MOTIS .

EDSC通过数据库优化设计加快查询速度，使用灵活的模式配置实现动态修改目录数据单元，提供JAAS方式的身份认证和支持属性级操作设置的权限控制机制以保证数据安全。

Moreover , EDSC is capable of accelerating query speed by refining design of database , modifying directory data unit dynamically using flexible mode configuration , providing JAAS Identity authentication and presenting access control mechanisms which support attribute-level operation setup to ensure data security .