它们非常有用。
萨尔：战歌部落的弩炮！它们非常有用。
它们非常有用，比如说，能让我们更好地了解物质的表层属性。
They are very useful, for example, in understanding the properties of material surfaces.
XSLT还有许多其它变化，样式表程序员会发现它们非常有用。
There are many other changes to XSLT that style sheet programmers will find useful.
尽管它们非常有用，但我认为对如此小的程序的使用进行收费不是件很合适的事情。
I don't feel that it would be appropriate to charge money for such small programs, even if they are extremely useful.
不要求您必须拥有这些方法，但是它们非常有用，因为它们不允许用户发出当时没有意义的命令。
It is not required that you should have such methods, but they are useful as they don't allow user to fire commands that do not make sense at that point in time.
split和. join对提供了在字符串和字节组之间转换的迅捷方法，您会发现它们非常有用。
The pair.split and.join provide a quick way to convert between strings and tuples, something you will find remarkably useful. Usage is straightforward.
在做短期的优先级排列和计划时它们非常有用。但是当一个故事完成六个月后，如果你需要了解系统时，这些卡片却不会有太大的帮助。
they are useful for short term prioritisation and planning, but when you need to understand what your system does six months after implementing a story, the card isn't going to help much.
我希望你会发现它们对你的演讲非常有用。
I hope you'll find them very useful in making your speeches effective.
我认为它们在联系职业发展人员和潜在的候选人时非常有用。
I think they're really useful for making contact with careers development staff and prospective candidates.
尽管无人机可能有害，但它们也可能非常有用。
它们仍然非常有用。
这个非常有用的特性使用户可以调整或定制应用程序，增加它们的价值。
This valuable feature means that users can tailor or customize your applications to add their own value.
另一方面，您也可能认为这些向导非常有用，并继续使用它们。
On the other hand, you may find the wizards useful and continue using them.
它们收集(单独或组合起来)对于做出业务决策非常有用的信息。
They collect information that — individually or in combined — is useful for making business decisions.
对于识别和研究带有低覆盖率的代码区域来说，它们是非常有用的工具，因为通过将它们在适当的浏览器或者编辑器中打开，从而强调了代码的选择区域。
These are useful tools for identifying and investigating areas of code with low coverage, because they highlight the selected area of code by opening it in the appropriate viewer or editor.
您还可以保存一种类型的值，然后在其他类型的业务对象中使用它们，当不同的业务对象中具有类似的数据时，这非常有用。
You can also save values of one type and then use them in the business objects of other types, which is useful when you have similar data in different business objects.
这些跟踪会立即应用，并且在重新启动后不会保留，但是它们对于调试会非常有用。
These traces are applied on the fly, and they do not persist after restarts, but they can be useful in debugging.
显然，这使得它们对于任何旨在集成异构后端应用程序的工作来说都非常有用。
Obviously, this makes them very useful for any effort targeting the integration of heterogeneous back-end applications.
本文对使用这两个系统或仅仅比较它们的用户非常有用，所提及的工具对于集成两个系统的用户应该非常有用。
The article should be valuable to users working with the two systems or merely comparing them, and the utility should be invaluable to those integrating the two systems.
尽管我们创建的简单组件视图不需要这些类，但它们可以跨组件重用，在开发更加复杂的组件时非常有用。
Although not required for the simple component view we are making, they can be reused across components and are of great value when developing more complicated components.
这些都是非常有用的关注于技术的视角，但是，它们自身并不是足够的。
These are useful technology-focused perspectives, but, by themselves, they are not enough.
一组能够共同行动的机器人就像鸟群一样，它们是能够为单一机器人提供非常有用的优势。
A team of robots that could coordinate its actions like a flock of birds could offer significant advantages over a solitary robot.
它们是一些非常有用的书。
这是非常有用的，因为对于创建和修改一个资产它们都是必须的。
This is useful because both are needed to create or modify an asset.
如果需要引入一些基本的xml类型，且它们又不被标准JAX - RPC映射支持的情况下，这种模式非常有用。
This pattern is useful in the case where some fundamental XML types are introduced but are not supported by the standard JAX-RPC mapping.
这些快照视图非常有用，但它们仅显示了当前使用情况。
These snapshot views are useful, but they only show your current usage.
为设备分配中断请求(IRQ)的确是一个非常有用的服务，因为它允许OS只获取一个服务列表并开始运行，而不用对它们进行编程。
Allocating interrupt requests (IRQs) to devices may actually be a useful service, because it allows the OS to just grab a list of devices and start running, without having to program them.
现在您已经了解了有关静态方法和成员的增强，现在让我们看一看PHPV 5中新添的类，它们构成了非常有用的部分：标准php库。
Now that we have seen some enhancements with static methods and members, let's take a look at some new classes added to a very useful part of PHP V5: the Standard PHP Library.
如果你要在阿富汗边远多岩石的山区搜索敌人，它们会是非常有用的装备。
A useful bit of kit if you're looking for an enemy in the remote, Rocky Mountains of Afghanistan.
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