An XPathFactory is only expected to know how to create XPath objects for one particular type of data model.
对于特定类型的数据模型，XPathFactory只需要知道如何创建XPath对象。
Since we know that in our model, we only expect to have a single name for each person's resource, we usually ignore the lowest level of lists anyway.
由于我们知道在我们的模型中，我们仅仅期望每个人的资源只有一个单一名称，所以我们无论如何总是忽略列表的最低一级。
You need to know how the Document Object Model (DOM) works only if you wish to change the code in this tutorial to suit your own applications.
只有当希望修改本教程中的代码以适应具体应用程序时才需要了解文档对象模型(DOM)的工作原理。
By working with the XML data under collections and results, the programmer only has to know the XML data model and the W3C standards for navigating, transforming, and querying the XML data.
通过处理集合和结果中的XML数据，程序员只需了解XML数据模型以及用于导航、转换和查询XML数据的W3C标准。
The characteristic of this model is only to know basic and natural boundary condition, then the stream function and flow velocity required on the boundary are obtained.
这一模型的特点只需要知道边界上的基本边界条件和自然边界条件，就可以得到边界上所需要求的流函数和水流速度；
As we know, classic optimization techniques are not only troublesome in calculation, but also low efficient for the highly non-linear interval parameter optimal design model (IPODM).
对于高度非线性的城市污水处理厂区间数优化设计模型（IPODM） ，若采用传统的方法求解，不仅计算繁琐，且难以有效地寻找全局最优解。
Although the Standard Model requires only one Higgs field to generate all the elementary particle masses, physicists know that the Standard Model must be superseded by a more complete theory.
虽然标准模型只需要一个希格斯场，就足以产生所有基本粒子的质量，可是物理学家知道，标准模型一定会被更完备的理论所取代。
The only certain way (that we know of now) to know if an algorithm will model your data well is to try it out.
通常说，某个算法有可能对你的数据建立一个好的模型就是可表示。 （多层神经网络可以表示任何函数？？）
It's the lastest model. As far as I know it is only on sale here is Beijing.
这是最新的型号，据我所知，北京只有此地出售。
Only uniting all these models, we can definitely know the source of problems in the hospital management. Else if you use the model alone, you can not obtain intact conclusions.
我们建议，联合使用这些模型，才能明确诊断医院管理中存在问题的根源，孤立地套用其中任何一个都只能得到非常有限和次要的结论。
Only uniting all these models, we can definitely know the source of problems in the hospital management. Else if you use the model alone, you can not obtain intact conclusions.
我们建议，联合使用这些模型，才能明确诊断医院管理中存在问题的根源，孤立地套用其中任何一个都只能得到非常有限和次要的结论。
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