Now, it's time for a more useful example.
现在演示一个更有用的示例。
One useful example is the case of very-low-thrust orbit raising.
一个有用的例子是非常低推力轨道提升的情况下。
One useful example of this process is the standard airbag in vehicles today.
有关这个过程的一个例子就是目前汽车中使用的气囊。
A more amusing but far less useful example is the combination of Jamboree and Ringaling.
一个更为有趣但很不实用的例子是Jamboree和Ringaling的结合。
We thought you would appreciate a more real-world, useful example over the popular "Hello world!" example.
我们认为，您会更喜欢一个比大众化的“Hello world ！”示例更真实、更有用的例子。
The history and goals of this new operation could be a useful example for other countries facing similar challenges.
这项新业务的来历和目标可以为其它面临同样挑战的国家提供一个有益的范例。
Than the 3rd and what I find to be the most useful example. She loves him so much she doesn't want to appear too eager.
第三种情况，也是我认为最有用的情况。她深爱着他，但她不想表露出她的渴望。
We'll see another useful example of named and default arguments when we discuss case classes in the section called "case classes" in Chapter 6, Advanced Object-Oriented Programming in Scala.
我们会在《第6章-Scala高级面向对象编程》中的“CaseClass(案例类)”中看到另外一个使用命名参数和默认参数的例子。
The classification presented above is by no means exhaustive, but it does serve to provide a useful example against which to relate the mechanisms which are involved with Web service discovery.
上面所示的分类并不详尽，但是它的确提供了一个有用的示例，据此，才能把Web服务发现涉及到的机制联系起来。
Note that the last entry in s: timestamps is a particularly useful example: it automatically updates the year-range of any embedded copyright notices, whenever a file containing them is written.
需要注意的是，s：timestamps中的最后条目是一个极为有用的例子：它会自动地更新任何嵌入式版权声明的年份范围，只要包含它们的文件被编写。
In this example, we show two useful styles.
在本例中，我们说明两种有用的样式。
The word count example is useful and applicable to a large number of problems, but other models still fit within this general framework.
虽然字数统计示例对于大量的问题是有用且适用的，但是其他的模型仍然在此总体框架内适用。
Although useful, this example can be more powerful, as shown in Listing 5.
此示例已经非常有用，但还可使它更强大，如清单5所示。
When modeling a system's structure it is sometimes useful to show example instances of the classes.
当一个系统结构建模时，显示例子类实例有时候是有用的。
As a file, the appliance has some useful properties-for example, you can duplicate it (for backup purposes) as well as move it between hypervisors (called VM migration).
作为一个文件，虚拟设备拥有一些有用的特性—比如，复制(以便备份)和在多个管理程序之间移动(称为VM迁移)。
This simple example application defines two eminently useful operations that convert input strings either to upper or lower case.
这个简单的应用程序范例定义了两个非常有用的操作，把输入的字符串转化成大写或小写。
This can be useful if, for example, it is known that database resources become overloaded when the application server reaches 50% utilization.
这在某些情况下是有用的，例如如果知道当应用服务器的利用率达到 50% 时数据库资源就会过载。
Knives are very useful things for cooking, for example, but can indeed be used for evil.
比如，当刀具用作烹饪时它是非常有用的，但它又确实可以被用来做坏事。
This is particularly useful, for example, if the form has multiple pages; you may not want the user to reenter his or her name on every page of the form.
在表单有多个页面的情况下，这尤其有用；比如，用户就不必在表单的每个页面上重新输入他们的姓名。
One other useful tidbit from the example code is the "llinfos" stream.
从这些样例代码中获得的另外一个非常有用的信息是“llinfos”流。
MyBeasties is a good example of a useful and fairly fast toolkit.
My Be asties是有用而且相当快的工具箱的良好示例。
Learning by example has proved useful.
事实证明通过示例进行学习是非常有用的。
This program can then execute qmail-queue as necessary, which might be useful, for example, to filter out email messages that contain viruses.
这个程序可以执行所需的qmail-queue，这可能会有用，来过滤哪些包含病毒的邮件消息。
The bin directory contains scripts for performing a number of useful actions. For example (on the Windows platform).
bin目录中包含执行一些有用动作的脚本，比如(在Windows平台上)。
It allows to define several installations: this is useful for example when you have to build some applications using Rational application Developer 7.0 and some others using the build utility.
它支持定义一些安装：当您使用RationalApplication Developer 7.0而有些人使用构建工具时，这一点是十分有用的。
Hacking in this registry using debugging tools like FireBug (see Resources) could be useful to track, for example, leaking widgets.
使用类似FireBug(参见参考资料)这样的调试工具深入此注册表可能会对跟踪(比如跟踪漏掉的小部件)有用。
However, for the purpose of our example it is useful to illustrate all the notifications emitted.
然而，考虑到本示例的目的，说明一下所有发出的通知是非常有用的。
This is useful, for example, if you would like to display blocks of memory defined outside your program.
这是十分有用的，例如，如果您想要显示在程序外部定义的内存块，那么就可以用到上述特性了。
This last example could be very useful to organizations running applications on architectures from multiple vendors, but it would be a serious undertaking.
最后这个例子对于企业从多个供应商在体系结构上运行应用非常有用，但它必须被认真地对待。
He is also investigating how circuit design principles can help genetically engineer cells to perform useful functions, for example, the robust and sensitive detection of toxins in the environment.
另外，他还研究电路设计原则究竟怎样帮助基因工程细胞发挥有用功能，例如，对于环境毒素的强大而敏感的检测。
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