Sixthly, To practice arbitrage on the basis of four boundary, we establish and close out positions by using simulated data, then compare the final return to simple arbitrage strategy's.
第六部分在模拟出来的数据的基础上根据四条边界进行套利交易，并将最终获取的收益与简单套利策略得到的收益进行比较。
This makes it extremely simple to save what you find with an electronic bookmark so you can return to it later.
用一个电子书签保存找到的内容使以后再次访问变得非常简单。
To simplify this example, we'll just add a new class whose methods return some simple data.
为了简化这个示例，我们添加了一个新类，它的方法返回一些简单数据。
Listing 6 creates a scalar function that extracts a given XML element from an input document and shows how this function can be invoked in a simple SQL query to return the name of a given customer.
清单6创建一个标量函数，它从输入文档中提取出一个特定的xml元素。然后，在一个简单的SQL查询中调用此函数，从而返回给定的客户的姓名。
Your goal is to build a simple controller that will know which model and function to run, and then return a JSON object as a response that is usable on the far end of the transaction.
您的目标是构建这样一个简单的控制器：它知道应该运行哪个模型和函数，然后返回一个JSON对象作为响应，这个响应可用于事务的远端。
The XQuery in Listing 3 illustrates a simple XQuery expression to return the title for films from the year 2002 from the XML document in Listing 1.
清单3中的XQuery演示了一个简单的XQuery表达式，用于返回从清单1中的XML文档查询到的自2002年至今的电影片名。
In this implementation class, we use the CreditApplication input to create a simple CreditRating business object that we then return to the caller.
在这个实现类中，我们使用CreditApplication输入创建一个简单的CreditRating业务对象，然后我们将该业务对象返回到调用程序。
I felt quite at home then. And in every farming season, we turned to our neighbors for help when shorthanded and a simple meal for them in return was just enough.
农忙时，家里农活忙碌，邀邻居来帮忙，只需吃顿简单的饭，聊聊天。
Recognizing that this problem extends beyond the simple need to communicate both function results and errors, the Go authors built in the capability to return multiple values from a function.
认识到这一问题的影响已超出了函数结果与错误通讯的简单需求的范畴，Go的作者们在语言中内建了函数返回多个值的能力。
Disable namespace aware to ignore the namespace tagging in the XML document, and to check only the simple name of the element and the final return value.
禁用Namespaceaware忽略X ML文档中的名字空间标签，仅检测元素的简单名称和最终的返回值。
Although this procedure is quite simple, it helps you understand how to generate SQL-based procedures that query and return XML data using built-in wizards.
尽管该过程非常简单，但是也能帮助您理解如何使用内置向导生成基于SQL的过程来查询并返回XML数据。
No need to create an interface and stub out an entire mock object - you can strategically override that one method and return a simple mocked-out response.
无需创建接口和去掉整个模拟对象的存根—您可以有选择地重写方法并返回一个简单的模拟响应。
I made no attempt to do anything too fancy here, but it is a useful exercise to look at how a simple template can provide a substantial return in style and organization.
我并不打算在这里做一些太花哨的事情，但查看一个简单模板如何通过样式和组织提供丰厚的回报是一个有用的练习。
To put the model in simple economic terms, its search results give away, say, $1 in value, and in return (thanks to the user’s clicks) it gets 1 cent back.
换用简单的经济学表达来说，其搜索结果产生出1美元的价值，而其收益（感谢用户的单击）却只是1美分。
The most popular life-insurance products tend to be simple: pay a premium for 10-15 years and get a return, plus protection for your family in the case of death.
最受欢迎的人寿产品往往十分简单：在10到15年中缴纳保费，就能获得收益，万一遭遇不幸，家庭还能获得额外的赔偿。
To keep our example simple, we also return the status value that is used to control the process flow.
为了保持示例简单，还返回用于控制流程流的状态值。
A paper by AQR, a hedge-fund group, found that a simple trend-following system produced a 17.8% annual return over the period from 1985 to 2009.
根据对冲基金集团AQR的一篇文章，趋势跟踪系统在1985至2009年间年利润为17.8%。
Things get more interesting when I run a simple query to return all Persons, like so.
当运行一个返回所有Person的查询时，将会更加有趣，如下所示。
Of course, our example implementation does not return any real information but is a simple example to show the requirements of a more complex web service interface.
当然，我们的示例实现并不会返回任何实际的信息，它只不过是一个简单的示例，用于说明更为复杂的Web服务接口的要求。
Now that you've built the custom web service that can handle and return XML payloads, look at a simple code example of how to do this in Listing 9.
现在您已经构建了可以处理和返回xml有效负载的自定义web服务，接下来在清单9中看一下如何实现这一点的一个简单代码示例。
For instance, for most web services that return simple WSDL and RESTful payloads, the number of rows may not be significant compared to transactions that include pictures, video, and audio media.
例如，对于很多返回简单WSDL和RESTful负载的Web服务，与包含大量图片、视频和音频媒体的事务相比，行数很少。
By adding a simple function to display a message and exit with the appropriate return code as well as moving everything into a for loop, the script looks cleaner and is easier to understand.
这个脚本增加了一个简单的函数来显示一个消息并带适当的返回码退出，还把所有操作转移到一个for循环中，这使这个脚本看起来更干净、更容易理解了。
Adding a room is as simple as double-clicking the room name from the picker, and then clicking OK to return to the Preferences dialog.
添加房间的操作也非常简单，只要在选择程序中双击该房间的名称，然后单击ok按钮返回Preferences对话框即可。
The queries are simple with good performance because you need not do any joins to access multiple subclasses, and ActiveRecord can use the type column to determine which records to return.
这些查询简单且性能很好，因为您无需进行任何连接来访问多个子类，ActiveRecord可以使用type列决定哪个记录能够返回。
Let's say you want a lookup table that will return square roots of Numbers between 5 and 20. A simple program can be written to generate such a table like this.
假设我们希望得到这样一个查找表：它返回5到20之间各个数字的平方根。
The pumps are used in a wide range of applications ranging from simple industrial booster pumps to high pressure condensate return and heater drain pumps in power plants.
其泵的应用范围很广，从简单的工业辅助泵到高压冷凝回流泵以及电厂的热泵。
The pumps are used in a wide range of applications ranging from simple industrial booster pumps to high pressure condensate return and heater drain pumps in power plants.
其泵的应用范围很广，从简单的工业辅助泵到高压冷凝回流泵以及电厂的热泵。
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