Specifically, business modeling helps to define system requirements.

具体来说，业务建模有助于定义系统需求。

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In the past, a test tracking tool was used to define system test scenarios and document test execution results.

在过去，测试追踪工具用于定义系统测试场景及编档测试执行结果。

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Define system performance targets, evaluate suppliers' system design sub-components' design to ensure targets met.

制定系统各项性能指标，评估供应商系统和子部件设计以保证目标得以满足。

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They used a system of measurement called the Body Mass Index to define words like obese and overweight.

VOA: special.2009.07.21

Then, after you define what your system is, whatever is left over of the universe is the surroundings.

当你定义了你的系统后，宇宙的其余部分,就是环境。

麻省理工公开课 - 热力学与动力学课程节选

We're going to find other properties that do care about the history of the system like work, that you put in the system, or heat that you put in the system, or some other variables But you can't use those to define the equilibrium state.

我们还会发现其他一些,与系统的历史有关的性质,比如你对系统做的功，或者你向系统传递的热量，或其他的变量,但你不能用它们,来定义平衡态。

麻省理工公开课 - 热力学与动力学课程节选

Microsoft needs to focus more on the video games that will define their system, and they really need to announce some non-Kinect exclusives for the Xbox One at E3.

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

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Responsibilities: Define and implement antenna system architecture to optimize the radiation performance for wireless portable devices.

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