To receive any arbitrary JMS message into a mediation flow, we must define a set of operations that represents these messages.

要接收任意的 JMS 消息作为中介流中的成员，我们必须定义表示这些消息的一组操作。

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Inputs and outputs: These elements define ports that can bind to the inputs or outputs of other steps and define the flow of XML documents.

输入和输出：这些元素定义可以绑定到其他步骤的输入或输出的端口，并定义XML文档的流。

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No explicit planning occurs; instead, the dependencies simply define the flow of service initiation, with parallelization implicit in the process.

没有进行显式的规划；相反，依赖关系简单地定义了服务初始化的流程，这个过程中隐含着并行化的操作。

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And get into the habit of using it to help you define what is the flow of control.

然后是养成用伪代码,来帮助你定义控制流的习惯。

麻省理工公开课 - 计算机科学及编程导论课程节选

the zeroth law, which is the common-sense law, which says that if you take a hot object next to a cold object, heat will flow from the hot to the cold in a way that is well defined, and it allows you to define temperature.

上节课我们讨论了，热力学第零定律,这一定律源自常识：如果把一个热的物体,与一个冷的物体挨在一起，热量就会以确定的方式。

麻省理工公开课 - 热力学与动力学课程节选

What makes sense all depends on how you define the flow system involved.

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We define free cash flow as net cash provided by operating activities less capital expenditures.

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We define cash productivity as the amount of free cash flow that a retailer produces per unit of retail space.

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