It studies these populations in the past, present and future using quantitative data and mathematical models as tools of analysis.
它使用定量数据和数学模型作为分析工具，研究这些人口在过去、现在和未来的情况。
It studies these populations, in the past, present and future, using quantitative data and mathematical models as tools of analysis.
它使用定量数据和数学模型作为分析工具，研究这些物体在过去、现在和未来的数量。
These data have established a strong connection between variations in the Earth's orbit and the periodicity of the ice ages.
这些数据已经建立了地球轨道变化和冰期周期之间的强有力的联系。
Social scientists work with statistics derived from data, and the best way to present these statistics is often in graphic form.
社会科学家研究从数据中得出的统计信息，而呈现这些统计数据的最佳方式通常是图表形式。
Data collected in 1994 by the Clementine spacecraft show that many of these lunar basins have no anomalously low gravity and some even have anomalously high gravity.
1994年由克莱门蒂号航天器收集的数据显示，这些月球盆地没有异常的低重力现象，有些甚至有异常高的重力。
These are in the form of data exporting and reporting.
这些是以数据导出和报告的形式存在。
You can create a class to track and log these errors in a data store for future reference.
您可以创建一个类来跟踪并在数据仓库中记录这些错误，以后可以做作参考。
For example, it can map between a logical and physical model, that is, between the concepts of the canonical data model and the realization of these concepts in the data platform.
例如，它可以在逻辑模型与物理模型之间映射，也就是规范化数据模型的概念与这些概念在数据平台中的实现之间的映射。
These help in locating global data and function addresses while analyzing stacks.
这些有助于在分析堆栈时找到全局数据和函数地址。
In short, you need an efficient way of structuring your XML data and all these XSL style sheets.
简而言之，您需要一个有效的方式来组织XML数据和所有这些xsl样式表。
These must match in position and data type with the columns in the virtual table CATEGORIZED.
这些字段必须在位置和数据类型方面与虚拟表CATEGORIZED中的列相匹配。
Reading and processing these 10 files will consume, in our simple example, around 10mb of string data.
在我们的简单示例中，读取和处理这10个文件将消耗大约10MB的字符串数据。
The state of data in these applications is continuously assessed, and there is interaction with application owners about this data.
这些应用程序中数据的状态是被不断评估的，并且存在与应用程序所有者对于该数据的交互。
This means that you can practically write any client that can consume these data and present them to the user in any way you want.
这意味着您可以实际编写任何能够使用这些数据并以您希望的方式向用户显示数据的客户端。
Table 1 lists and compares data maintenance methods available in these platforms.
表1列出并比较了这些平台中可用的数据维护方法。
These languages pose different challenges in storing, processing, accessing, and presenting the data.
这些语言在存储、处理、访问和表示数据方面提出了各自不同的挑战。
Data instances: These hold the real information and you should be able to store the data in a particular instance of the model.
数据实例：这些实例存储了真实信息，并且您应该能够将数据存储在特殊的模型实例中。
Using this pattern, we illustrate the value of quickly editing end-user forms with lightweight editors and deploying these forms immediately, resulting in improved data collection.
通过该例，我们说明了用轻量级编辑器快速编辑终端用户表单并立即部署这些表单的意义，可以改进数据采集。
In many cases, these standards are defined for a particular industry and express the structure of relevant data in the form of XML schema.
在许多情况下，这些标准是为某一特定行业而制定的，并且以XML模式的形式表达相关数据的结构。
Three GEONETCast centres around the world—in America, Europe and China—receive these environmental data from the outfits that collect them.
三个卫星信息传播系统集中在世界上的美国、欧洲和中国，用于收集这些环境资料。
The centers in these NATO countries and Russia can already see each other's data.
北约国家与俄罗斯的这些中心已经可以看到彼此的数据。
In these circumstances, the DASes create and initialize a data factory, but they keep it hidden and provide an interface themselves for creating data objects.
在这些环境中，DAS创建并初始化数据工厂，但使之保持隐藏状态，自行提供一个接口来创建数据对象。
Fortunately, a bit of discipline can work around these problems and even improve your uptime in the physical data center!
幸运的是，有一些规则能够解决这些问题，甚至改善您在物理数据中心的运行时间！
In these cases it may be advantageous to use clouds that are in different regions and either partition the data or use synchronization to maintain consistency.
对于这类情况，使用分布在不同地区的云、对数据进行分区或使用同步维护一致性的效果可能会更好一些。
Setting up connectivity to a data store, finding all classes annotated as entities, and configuring the persistence logic to bind these classes to entities in the data store is not a quick operation.
建立到数据存储的连接、查找标注为实体的所有类、配置持久化逻辑以将这些类绑定到数据存储中的实体，整个过程不可能快速完成。
Unfortunately, the data for these agencies is often kept in many different repositories, and reflects many different data models.
不幸的是，这些机构的数据总是保存在许多不同的库中，并且反映了许多不同的数据模型。
Once again, these types of files are very un-secure and you will need to take extra precautions to ensure that the data in these files cannot be compromised.
再一次告诉您，这些文件类型都非常不安全，您需要采取额外的预防措施来保证这些文件中的数据不会受到危害。
If you design applications that package and exchange small, controlled chunks of XML data in manageable processing stages, you reduce these blind spots and make the application easier to maintain.
如果我们将应用程序设计为只在便于管理的处理阶段中打包和交换少量XML数据，那么就可以减少这些盲点，使应用程序更易于维护。
These days IT systems are at the core of many companies—and just like data, these systems can now live in a variety of places.
目前像数据那样，IT系统还是很多系统的核心，这些系统现在可以运行在很多不同的地方。
Open source and commercial tools are available to convert data in these formats to triples, giving you an easy way to combine data from multiple sources using different formats.
有开源和商业工具可用于将这些格式的数据转换成三元组，从而让您可以轻松组合多个来源、不同格式的数据。
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