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.
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.
当您正在处理简单数据或服务对象时，编写单元测试很简单。
When you're dealing with simple data or service objects, writing unit tests is straightforward.
充实和自定义中介可能需要访问其他场所的数据(或其本地副本)，例如服务提供者的业务单元。
Enrichments and custom mediations may require access to (or local copies of) data from other locales, such as the service provider's business unit.
注册表服务为一个单元的所有主体、组和帐户信息维护一个数据库。
Registry service maintains a database of all the principal, group and account information for a cell.
在一个AFS单元内，至少必须有一个机器在运行数据库服务器和文件服务器进程。
In an AFS cell, at least one of the machines must be running database server and file server processes.
在导入到目标环境中时，档案文件中的配置数据可以接纳本地单元、节点和服务器的名称。
The configuration data in the archive takes on the names of the local cell, node, and server when imported into the target environment.
磁盘组件是一个或多个被分配到数据库服务器的磁盘空间单元的集合。
Disk component is a collection of one or more units of disk space assigned to the database server.
数据控制需要从服务器移动到文件，甚至到数据自身内的原子单元。
Data control needs to move from servers to files and even atomic units within the data itself.
尽管某些EII工具支持对异种数据库的更新，但是这些更新仍然应该受那些拥有那些数据库的服务单元的控制
While some EII tools support updates to the heterogeneous databases, updates should still be controlled by the service units that own those databases.
因此，您数据库中的锁争用将明显降低，并且您的应用程序服务器具有更短且更分散的工作单元，这将降低CPU和JVM的内存开销。
Thus, the lock contention is significantly reduced in your database, and your application server has shorter and more discrete units of work, which reduces CPU and JVM memory overhead.
例如，您可以用它查找单元中的所有服务器、修改某些服务器配置参数或者配置新的数据源。
For instance, you can use config service to find all the servers in the cell, modify some server configuration parameters, or configure a new data source.
例如在一个例子中，服务器可以看作是非配置单元，而配置在这个服务器上的数据源可以看作是配置单元。
As an example, a server can be treated as a non-configuration unit, while a datasource that is configured on that server can be treated as a configuration unit.
区块是用于数据库服务器数据存储的最大物理磁盘单元。
A chunk is the largest unit of physical disk dedicated to database server data storage.
由于服务也是可执行单元，因此需要提供服务元数据，以便所部署的应用程序发现和执行服务。
Because services are also executable units, service metadata needs to be made available for deployed applications to discover and execute the services.
支持对此集成视图的写访问时，联合服务器必须将各个源中的数据操作同步到逻辑工作单元中。
When supporting write access to this integrated view, the federation server must synchronize the manipulation of data in the various sources into a logical unit of work.
重用：数据服务可作为操作企业数据的可重用构建单元。
Reuse: data services serve as reusable building blocks of operations on enterprise data.
它从数据源驻留的后端系统开始，到API连接，到应用程序服务器，到WSP网关，然后到手持单元。
It goes from the backend system, where the data source resides, to the API connection, to the application server, to the WSP gateways, and then to the handheld units.
许多服务将继续使用包含它们自己数据库的遗留或COTS系统，并且服务单元实现的异质性是SOA机动性的基础。
Many services will continue to use legacy or COTS systems that incorporate their own databases [and] heterogeneity of service unit implementation technologies is fundamental to SOA agility.
单元测试意味着在隔离环境中运行，所以不会运行数据库和Web服务器，最重要的是不会发生与Grails 相关的元编程。
Unit tests are meant to run in isolation, which means that no database is running, no Web server is running, and — most important — no Grails-related metaprogramming occurs.
文件 /usr/vice/etc/ThisCell包含此AFS客户端的本地单元名称，而 /usr/afs/etc/ThisCell 则包含其数据库服务器将在此机器上运行的那些单元的名称。
The file /usr/vice/etc/ThisCell contains local cell names for this AFS client whereas /usr/afs/etc/ThisCell contains cell names whose database servers will be running on this machine.
运行在AFS单元中的不同机器上的数据库服务器进程可以使用ubik协议使其数据库保持同步。
Database server processes running on different machines in an AFS cell use Ubik protocol to keep their databases in sync.
usr/afs/etc/CellServDB文件包含 AFS 单元的数据库服务器信息，某个特定的机器正在为该单元运行 AFS 服务器。
The /usr/afs/etc/CellServDB file contains database server information of AFS cell for which a particular machine is running AFS server.
一个dependency性能定义了一个单元(例如，数据源)为它的同类单元进行操作的能力，可能是联合托管服务或者在不同的单元进行托管服务。
A dependency capability defines the ability for a unit (for example, datasource) to do work for its peer units, which may be co-hosted or hosted on different units.
证书颁发机构管理单元帮助您配置证书服务、查看证书数据库并吊销已颁发的证书。
The Certification Authority snap-in helps you configure certificate Services, view the certificate database, and revoke issued certificates.
由气象传感器、数据采集单元、数据预处理系统和中心服务器组成。
It makes up of meteorological sensor, data acquisition unit, pretreatment system and central server.
基于冗余的入侵容忍数据库是由多个异构数据库服务器组成的，通过增加冗余单元实现数据库的可生存性和可用性，但是冗余会引起系统性能下降。
The intrusion tolerance database based on redundancy is made of several isomerous database servers. And by adding redundancy cell, it achieves the survival and availability of database.
单元测试服务器数据交换？
单元测试服务器数据交换？
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