卷组描述符区域和卷组状态区域。
分类部分—一组描述符用于对资产进行分类，以及资产相关背景的描述。
Classification section - a set of descriptors for classifying the asset and a description of the contexts for which the asset is relevant.
卷组中的每个磁盘都有管理数据，包括卷组描述符区域和卷组状态区域。
Each of the disks in the volume group has management data, including a volume group descriptor area and a volume group status area.
在最终的EJB 2.0规范中，通过在EJB部署描述符(EJBDD)中使用一组简单的关系声明，EJB就相互联系起来。
In the final EJB 2.0 specification, EJBs are related to each other through a simple set of relationship declarations in the EJB deployment descriptor (EJB DD).
通过使用上面的描述符文件，可以在这个配置中定义下面的3个故障组。
By using the above descriptor files, define the following three failure groups in this configuration.
接下来，我们需要确保将Agents角色映射到应用程序部署描述符中ldap注册中心内的实际用户和组。
Next we need to ensure that Agents role is mapped to the actual users and groups in the LDAP registry in the application deployment descriptor. To do this, complete the following steps.
通过处理XML描述符文件及对包的跟踪，portlet可以使用新的DeviceManagementAPI为基于他们访问组的用户分配软件分发包。
By processing the XML descriptor file and tracking the packages, the portlet can use the new Device Management API to assign software distribution packages to users based on their access groups.
选择器在内部调用一个本机poll()函数（见清单5），这个函数支持在一组文件描述符上多路复用输入和输出
The selector internally calls a native poll() function (shown in Listing 5), which provides a mechanism for multiplexing inputs and outputs over a set of file descriptors
geronimo -web计划中的角色应与web描述符和ldap组中创建的角色匹配。
The roles in the geronimo-web plan should match those you created in the web deployment descriptor and LDAP groups.
根据脂肪醇的分子结构特征，提出一组拓扑指数作为表征脂肪醇分子结构的分子描述符。
A set of topological indices was used as molecular structure descriptors to describe the molecular structure characteristics of fatty alcohols.
第一次分类时不同的同类反应都在由一组普适性好的称作反应结构一级描述符构成的空间中进行。
In the first layer classification the reactions are classified in a hyperspace created based on a set of widely applicable reaction descriptors named first order reaction descriptors.
第一次分类时不同的同类反应都在由一组普适性好的称作反应结构一级描述符构成的空间中进行。
In the first layer classification the reactions are classified in a hyperspace created based on a set of widely applicable reaction descriptors named first order reaction descriptors.
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