Then by using Poincare-Bendixson theorem sufficient conditions for the existence of limit cycles are obtained.
在此基础上，利用微分方程的环域定理获得了所述系统存在极限环的条件。
Then by using the qualitative analysis theory of nonlinear equation, a nonlinear dynamical mechanism of formation of binary stars is obtained.
应用非线性方程的定性分析理论，获得双星演化的非线性动力学机制。
Then by using multi-dimension Laplace transform, the computation formula of nonlinear transfer function matrices for MIMO bilinear system are deduced.
然后，利用多维拉普拉斯变换，推导出双线性系统非线性传递函数矩阵的计算公式。
Fristly the boundary value problems for the equations is formulated, and then by using the compactness principle, the existence of solutions for the above problems is proved.
先给出这些问题的提法，然后使用列紧性原理和极值原理证明了上述二阶椭圆型方程边值解的存在性和唯一性。
They all require monitoring of the phase current and applied voltage (flux observation), then by using knowledge of the magnetic characteristics, the rotor position is determined.
他们都要求监控的电流、电压(流量观测)，然后运用知识的磁特性、转子位置所决定的。
Then by using thin aluminum shell to make flection experiments, and influence of geometry parameter factor on blast furnace shell's critical load and flection modals was analyzed.
然后用薄铝壳来模拟鲅鱼圈1号高炉炉壳进行屈曲实验，分析有关几何参数对高炉炉壳轴向临界载荷和屈曲模态的影响。
Then by using methods of case study and real practices, the two sets of textbooks are compared from multiple points of view, e. g. editing characteristic, contents and editing layout.
然后结合个案比较和实践研究等方法，通过观察，从教材的编写特色、内容、编排特点等方面对两种教材行了比较。
In this paper we improve some key steps in the homogeneous balance method, then by using this method we are able to obtain multiple soliton solutions of some nonlinear partial differential equations.
对齐次平衡法的一些关键步骤进行拓宽，获得了一系列非线性方程的多孤子解，使得对非线性方程的多孤子解的求解方法更加直接，且许多步骤可以利用计算机完成。
You can achieve this functionality by using hidden tags with the content, then switching out their visibility.
您可以通过对内容使用隐藏的标签，然后关闭其可见性来实现此功能。
Then, by using the image icon's ID, you can set an icon for each of the checkbox's states.
然后，通过使用图像图标的ID，可以为复选框的每种状态设置一个图标。
Then, consider optional and alternative services by using the same techniques for single systems.
然后，通过使用针对单一系统的相同技术，考虑可选和替代的服务。
Then, consider optional and alternative services by using the same techniques for single systems discussed earlier.
然后，通过使用前面讨论的针对单一系统的相同技术，考虑可选和替代的服务。
You can then refine search results by using search scopes, and by defining membership to the search scope with scope rules.
接着，我们还可以使用搜索范围来细化搜索结果，并通过范围规则来定义范围中的成员。
As you navigate through the application you build a stack of activities that you can then pop out of by using the back button on the phone.
当您在应用程序中导航时，就创建了一个活动堆栈，使用手机上的后退按钮就就可从该堆栈中出来。
Then obtain the SQL statement by using either of the previous method.
然后使用上述方法中的一种来获得SQL声明。
It's then processed using lactic acid, the waste product produced by bacteria in the meat.
然后，要用乳酸，这种由肉里的细菌产生的废料，继续加工。
Then set the progress action by using the upDatePercentage call and specifying a new value.
然后通过使用upDatePercentage 命令和指定一个新值来设置这个进展行为。
You can then run the Address Fix by using the second command below with that text file.
然后，您可以使用下方所示的第二个命令，与文本文件一起运行Addressfix。
This digital identity can then be used to exchange text securely by encryption using the key pair.
然后可以使用这个密钥对通过加密来利用数字身份安全地交换文本。
The user can then explore the lattice by using specified criteria, such as support and confidence bounds, or by placing restrictions on the antecedent sequence.
用户然后可以使用指定的条件(比如支持和置信界限)，或在先前的序列上设置限制来分析该格子。
It then builds a message object using the byte stream passed by the client.
然后，它使用由客户机传输的字节流来构建消息对象。
By then, America, Japan and Europe will be using less oil than in 1980.
届时，美国，日本和欧洲石油消耗量将会低于1980年的水平。
This presentation template is then configured by using a template map to instantiate the template elements with its list-dependent values.
这个演示模板然后使用一个模板映射进行配置，以使用依赖于列表的值实例化模板元素。
Then, by using an example of one customer requirement, this article has shown how to develop, deploy, and use a role selector widget to meet the requirement.
然后本文通过一个客户需求样例，演示了如何开发、部署及使用角色选择器小部件来满足用户需求。
If a test or schedule is configured for response time breakdown, and then executed by using the command line, response time breakdown data will not be collected.
如果测试或者调度配置了响应时间分解，使用命令行执行，则响应时间分解的数据不会被收集。
Time, then, to rekindle a little glamour, by using lasers to bring about nuclear fusion, the great prize of energy research.
现在看来是重新让人们对激光感兴趣的时候了，办法就是利用激光，激发核聚变，这就是能量研究方面最大的回报。
The key concepts of this article are explained first, and then these concepts are illustrated by using a sample portlet application.
本文首先介绍一下关键概念，然后使用范例portlet程序来展示一下这些概念。
If a new version of AccountService is required in a release, then using versioning by URL we might now also have the following service.
如果某个版本中要求使用AccountService的新版本，则通过使用按url的版本控制，我们现在可能还有以下这个服务。
If a new version of AccountService is required in a release, then using versioning by URL we might now also have the following service.
如果某个版本中要求使用AccountService的新版本，则通过使用按url的版本控制，我们现在可能还有以下这个服务。
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