这种同步只在文件系统定义改变时需要。
This synchronization only needs to occur when the definition of the file system changes.
系统定义文件有两个组件：部署时和运行时
The system definition file has two components: deployment time and runtime
椭圆体模型是空间引用系统定义的第一部分。
The ellipsoid model is the first part of a spatial reference system definition.
保存系统定义文件。
有许多GUI向导可以自动生成系统定义文件。
A number of GUI wizards exist for auto-generating system definition files.
项目的先启阶段，我们为系统定义三个参与者。
As work began on the Inception phase of the project, we identified three actors for the system.
图1：在项目先启阶段为系统定义的三个参与者。
Figure 1: Three actors for the system identified during the Inception phase of the project.
UIMA通过一个层级类型系统定义连接、输入和输出。
The connection, inputs, and outputs are defined by UIMA through a hierarchical type system.
delete删除为系统定义的现有TCPTR策略。
Delete deletes existing TCP TR policies that are defined for the system.
在服务器上，订阅和事件处理对系统定义的事件是一样的。
On the server, the subscription and event handling are the same as for system-defined events.
在LocalOS下为您的系统定义一个有效用户ID。
合约：依赖关系管理系统定义了模块的身份，这是合约的一部分。
Contract: a dependency management system defines the identity of the module as a part of the contract.
运行清单9内的命令来将文件系统定义从主站点导出到目标站点。
Run the commands in Listing 9 to export the file system definitions from the primary site to the target site.
面向对象的模型将系统定义为一组交互的主动和被动对象的集合。
The object-oriented model defines a system as a collection of sets of interacting active and passive objects.
通过系统定义和系统生存性测试逐层计算系统的生存性。
The survivability was computed through system definition and system survivability test.
基于XML的系统定义文件不用于描述应用程序，主要用于内部表示。
XML-based system definition files is not used for describing application, but it is used mostly for internal representation.
该L-系统定义简洁、高效、合理，并具备有限的随机性。
This L-system has many features: brief definition, high efficiency, rationality and definite randomicity.
因为模型是系统定义的一部分，比起文档，它们从不会过时，而且是可靠的。
Because models are part of the system definition, rather than documentation, they are never out of date and are reliable.
Tk响应的事件是类似于X11窗口系统定义的事件集，但是不完全相同。
The events Tk responds to are similar, but not completely equivalent, to the set of events defined by the X11 window system.
特定目的的注册器是系统定义的，屏幕界面中所列出的注册器是针对AIX的。
Special purpose registers are system defined, and the registers listed in the screenshot are specific to AIX.
当你为Struts或EJB写配置文件，你就是在为系统定义拓扑。
When you write the config file for Struts or EJB, you are describing the topology of your system.
CAS 将数据存储为有类型的结构，类型系统定义了类型以及类型之间的关系。
The CAS stores data as typed feature structures, and the typesystem defines the types and their inter-relations.
简要介绍了大系统的一般特点和两种比较有代表性的大系统定义观点。
We introduce in brief the common character of large-scale systems and two representative viewpoints of large-scale systems definition.
假设一个系统定义了三个服务策略：gold、silver和bronze。
Suppose we have a system with three service policies defined: Gold, Silver, and Bronze.
例如，使用操作系统定义的导航区域，使用用户为了得到所需动作而期望的手势。
For instance, use the navigation area defined by the OS and use the gestures expected by the user for a given action.
通过从HostW运行清单10 内的命令来验证文件系统定义到目标站点的传播。
Validate the propagation of the file system definitions to the target site by running the commands in Listing 10 from HostW.
要想构建新的映像，首先选择一个基本操作系统定义，然后扩展它以添加软件包（步骤5）。
To build a new image, start by choosing a base operating system definition and then extending it to add software bundles (Step 5).
uima类型系统定义能够在文档中找到并且能够被分析引擎提取的各种对象的类型。
The UIMA type system defines the various types of objects that might be found in documents and that can be extracted by analysis engines.
通过在主站点从HostA运行清单7内的代码来同步主站点与目标站点之间的文件系统定义。
Synchronize the file system definition from the primary site to the target site by running the code in Listing 7 from HostA on the primary site.
在这种情况下，宿主系统定义了一套plugin必须遵循的API及plugin注入方式。
In these cases, the host system has a defined API to which the plugin must conform, and a way of injecting that plugin in.
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