很多情况下，我们都想在后台执行此操作，只更新或改变页面的一部分内容。
In many cases we would like to perform this operation in the background and update or change only a part of the page.
在我们的例子中，后台服务仅提供一个操作。
In our example, the back end web service offers only one operation.
您可以利用这些标签，从命令行操作您的后台工作。
You can manipulate your background jobs from the command line using these labels.
如果操作不能很快完成，应该让它们在单独的线程中运行(“后台”或“工作”线程)。
If you have operations to perform that are not instantaneous, you should make sure to do them in separate threads (" background "or" worker "threads).
方法4也存在同样的问题——如果服务后台包含一个以上的操作，那么它可能也不是最佳方法。
A similar rationale applies to Solution 4 — if the service back end exposes more than one operation, it may not be the best fit.
工作者池模块在后台运行操作，因此不会阻塞用户界面。
The WorkerPool module runs operations in the background, without blocking the UI.
您有时可能会看到您的操作被后台任务阻断的消息。
You might sometimes see messages that your user operations are blocked by the background tasks.
因为在指定的等待周期内无法获取它，一个弹出式窗口告诉用户获取操作在后台继续执行。
Since it cannot be retrieved in the specified waiting period, a pop-up window informs the user about the background processing.
该模式的另一种选择是使用始终脱机模式并编写应用程序，当本地数据库发生更改时，将在后台立即进行同步操作。
An alternative to this pattern is using the always-offline pattern and coding the application to synchronize immediately in the background when changes are made to the local database.
因此，可以完全在后台发出HTTP请求、接收响应并更新页面的某些部分，这样就不会中断用户的操作。
It allows you to make HTTP requests, receive responses, and update parts of the page completely in the background, resulting in no visual interruptions for the user.
如果在等待周期结束时获取还没有完成，那么显示如图9所示的弹出式窗口，告诉用户获取操作在后台继续执行。
If the retrieval is not finished at the end of the waiting period, a pop-up window, as shown in Figure 9, informs the user that the retrieval is continued in the background.
第一个特性是一个可视化标志，使用户知道对特定文档的获取操作仍然在后台执行，但是还没有完成。
The first feature is a visual indicator to the user that the retrieval for a specific document is continuing in the background, but has not yet finished.
它允许应用程序在后台对表执行恒定数据加载操作，同时可以执行交互式读取和写入操作。
It allows applications to perform constant data load operations to a table in the background while the interactive read and write operations can occur concurrently.
统计刷新在后台运行，alterFRAGMENT命令在alter操作完成后将立即返回。
Refreshing of the statistics runs in the background and the alter FRAGMENT command returns immediately after the alter operation is completed.
最初，这个头主要是用来识别请求意图——后台所调用的操作。
Originally, the purpose of this header was to identify the intent of the request — the operation to be invoked on the back end.
“工作者线程池”，通过在后台执行费时的操作使应用程序响应更加迅速。
A worker thread pool, to make web applications more responsive by performing expensive operations in the background.
向执行组的部署将作为后台任务运行，部署进行的同时您也可以执行其他操作。
Deployment to the execution groups will take place as a background task, letting you perform other operations whilst the deployment takes place.
在libspe2中，这个操作变成同步的了，因此您可能会希望在后台运行一个线程，并发出自己的pthread调用。
In libspe2, the operation is synchronous, so if you want to run a thread in the background, you have to make your own pthread calls.
这是正常的，因为有些操作在可以继续进行之前需要后台任务先完成，例如使Workspace与您已经完成的工作同步。
This is normal, because some operations need the background tasks to complete before they can proceed, such as getting the Workspace in sync with work you've done.
Accelerator系统鼓励你以整个数组操作的方式来表述数据并行处理算法，对不同的后台程序(或“目标”)的实现更有效。
The Accelerator system encourages you to express data-parallel algorithms in terms of whole array operations which leads to efficient implementations for various back ends (" targets ").
service是在后台运行长时间操作或者执行远程进程工作组件。
A service is a component that runs in the background to perform long-running operations or to perform work for remote processes.
对于新的CopyOnWriteArrayList和copyonwritearrayset类，所有可变的(mutable)操作都首先取得后台数组的副本，对副本进行更改，然后替换副本。
For the new CopyOnWriteArrayList and CopyOnWriteArraySet classes, all mutable operations make a copy of the backing array first, make the change to the copy, and then replace the copy.
还可以使用-b参数将这个操作转到后台执行。
This can also be done in the background with the -b parameter.
TextTools是一个低层状态系统，SimpleParse利用非Python EBNF语法来描述语法（并在后台将其翻译为快速的 mx.TextTools 操作）。
mx.TextTools is a lower-level state machine, and SimpleParse makes use of a non-Python EBNF syntax to describe grammars (and translates it to fast mx.TextTools operations behind the scenes).
操作使用一个简单的XSLT通过WebServiceProxy调用样例后台服务，并创建发送回到请求客户端的响应消息。
Action that USES a simple XSLT to call the sample back end service via the Web service Proxy, and creates the response message to be sent back to the requesting client.
该操作系统还会支持多任务处理，但是我们还不清楚，后台应用是否会正常运行，或者它们会暂停直到转移到前台。
Also, the OS supports multitasking, but it is not clear if background applications will run normally or they will be paused until brought to the foreground.
您在后台对XML数据完成了一些数据库操作。
如果有耗时的操作，你应该把这些操作放在另外的线程中进行处理(后台线程或者工作线程)。
If you have long operations to perform, you should make sure to do them in extra threads (background or worker threads).
如果有耗时的操作，你应该把这些操作放在另外的线程中进行处理(后台线程或者工作线程)。
If you have long operations to perform, you should make sure to do them in extra threads (background or worker threads).
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