可以在任何时刻、任何线程内取消任务。
安全地取消任务而不引发线程取消异常依旧是一个重要的方面。
The ability to cancel tasks, without Thread-Aborts, continues to be an important issue.
然后可以用管理接口查询每个任务的当前状态、运行了多长时间，或者请求取消任务。
You could then use the management interface to query each task for what it is doing and how long it is taking or request that the task be canceled.
它被决定最好的方法是取消任务，在那个时候，比我们继续行动有更好的结果。
It was decided that it was best to abort the mission at that time rather than the far reaching consequences should we have gone ahead.
Quartz将提供不依赖于数据库的任务管理服务，开发者能够调度、可视化任务，并能暂停、重启及取消任务。
Quartz will provide the job management service, that is not dependent on the database for reliability, where the developers can schedule, visualize, pause, restart, and cancel jobs.
我们应该客观实际的估计每项任务到底需要多长时间完成，如果他们比计划的花的时间长，我们就从最低优先级的任务开始取消任务。
We are always realistic with ourselves about how long tasks take, and if they take longer than normal, we start cutting tasks that are lowest priority.
要了解如何在这种情况下维持任务执行、以及如何在activity被销毁时正确地取消任务，请参见Shelves例程的源代码。
To see how you can persist your task during one of these restarts and how to properly cancel the task when the activity is destroyed, see the source code for the Shelves sample application.
请注意Timer却创建了一个非守护线程在后台启动任务，因此在清单10 中我需要调用 System.exit() 来取消任务。
Note that Timer creates a non-daemon thread to fire the tasks in the background, however, so in Listing 10 I have to kill the VM via a call to System.exit().
我们别无选择，只有取消这项任务。
美国国家航空航天局今天在佛罗里达州宣布，已经取消了下一次的航天飞机任务。
NASA, the National Aeronautics and Space Agency, today announced in Florida that the next space shuttle mission has been canceled.
然而，由于飞船中央计算机系统出现问题，这次飞行任务取消了。
However, the flight has been canceled because of problems with the spaceship's central computer system.
订单可以由经理取消(通过人工任务)，也可以直接取消。
An order can be cancelled either by the manager (via the human task) or by canceling the order directly.
2003年哥伦比亚号太空飞梭失事，七名宇航员丧生，这之后，2004年，对哈勃原定的维修任务被取消。
A planned servicing mission was cancelled in January 2004 after the space shuttle Columbia was lost along with its crew of seven astronauts in 2003.
取消动作可以在一定范围内随时发生，这意味着您不能使用一项人工任务来满足这个需求，而是应使用事件处理程序。
The cancellation can happen within a certain scope optionally, which means you cannot use a human task to meet this requirement. Instead, you can use the event handler to meet this requirement.
右侧的图标使您可以打开或取消该任务。
The ICONS on the right enable you to open or cancel the task.
至于给我较低价值的剩余80%的任务，我要么推迟或取消他们，要么将他们承包出去。
As for the remaining 80% tasks that give me lower value, I either put them off, delegate them or outsource them.
如果任务按照预期的方式进行，会将升级作为多余的内容取消。
If the task has progressed as expected, the escalation is cancelled as superfluous.
有些任务拒绝被中断，这使得它们是不可取消的。
Some tasks simply refuse to be interrupted, making them noncancelable.
该操作如何取消人工任务？
经理通过人工任务取消订单的情形比较简单。
The case where the manager cancels the order via the human task is straightforward.
如果该订阅在任务完成之前就被丢失，那么该任务也会被取消。
If the subscription is dropped before the task is completed, then the task will be cancelled.
但是，即使是不可取消的任务也应该尝试保留中断状态，以防在不可取消的任务结束之后，调用栈上更高层的代码需要对中断进行处理。
However, even noncancelable tasks should attempt to preserve the interrupted status in case code higher up on the call stack wants to act on the interruption after the noncancelable task completes.
你可以远程取消和重启任务，或配置令其超时的截止日期或时间间隔。
Tasks can be cancelled and restarted remotely, or they can be configured to timeout at a given date or after a given elapsed time.
第5步是可选的；用户可以通过配置VM部署任务文件来取消这个操作。
Step 5 is optional; the user can choose not to do so by configuring the VM deployment task file.
由于生存机会太过渺茫，撞机八天以后搜索任务宣告取消。
Their chance of survival was so grim that the search mission was called off after just eight days.
还有一些帮助函数用于清理或取消工作队列中的任务。
There are also a number of helper functions that you can use to flush or cancel work on work queues.
如果以上三个预约任务中的任意一个失败了，就会执行“补偿”活动以取消旅程并通知Karla这个问题。
If any of the three reservation tasks fails, the itinerary is cancelled by performing the "compensate" activity and Karla is notified of the problem.
cancelClaim：取消对一个任务实例的声明。
timertask类有一个cancel方法，可以用它取消对任务的后续调用。
The TimerTask class has a cancel method that you can use to cancel subsequent invocations of the task.
timertask类有一个cancel方法，可以用它取消对任务的后续调用。
The TimerTask class has a cancel method that you can use to cancel subsequent invocations of the task.
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