Use case diagram Provides a behavioral view of system context by displaying actors external to the system who go to the system to achieve a specific, valued result (use case).
用例图通过向即将使用系统的人员提供一个系统背景的行为性视图，来取得一个特定有价值的结果(用例)。
UML defines a use case as "A description of a set of sequences of actions, including variants, that a system performs that yields an observable result of value to a particular actor.
UML 将一个用例定义为“一个系统执行的一系列行为的描述，包括变量，它将生成特殊参与者所得值的可观测结果。”
A use case focuses on what the stakeholder needs the system to deliver, rather than describing how to arrive at that end result.
用例主要强调涉众需要这个系统交付什么，而不是描述如何实现最终的结果。
Also note that the result of the write system call is the number of characters written — in this case, 17 plus one carriage return.
还可以注意到，write系统调用的结果是写入字符的个数数目，在这个示例中为17加上一个回车。
Introduced by Ivar Jacobson in 1992, 7 a use case is defined as a sequence of actions a system performs that yields an observable result of value to a particular actor.
IvarJacobson 1992年所介绍的7用例被定义成系统执行的动作序列，能够生成对特殊参与者价值的引人注目的结果。
As a result, there is a greater chance of overheat in case something goes wrong in the engine cooling system.
作为一个结果，有一个更大的机会过热在出差错的情况下在发动机冷却系统。
Last of all, a real case is used to verify the founded finance post-evaluation system, and the result is in accordance with the true circumstances.
论文最后用实际案例对财务后评价体系的相关内容进行了验证，结果与实际相符。
The system can provide exact and comprehensive data and result for letters and visits, carry out the letter or the visit a case flow to turn in the different section.
该系统能为信访管理者提供比较准确、全面的数据和统计分析结果，能够实现信访件以案件的形式在不同部门的流转，实现信访案件文书的自动生成。
The analytic result has some referenced values to develop gyroscope's case rotating system.
分析结果对于研制静电陀螺仪壳体旋转系统具有一定的参考价值。
It is shown by design case and simulation result that the system designed with the proposed for the hydraulic turbine governing system has perfect stability and robustness.
设计例子与仿真结果表明，根据该方法设计的系统有比较理想的鲁棒性和稳定性。
The failure of valve opening sensor would cause valve management of DEH system working confusedly, and result in large scale change of turbine power in the case of governing stage pressure loop idle.
DEH系统中阀位传感器的故障会给阀门管理带来混乱，特别在调节级压力回路未投入的情况下会引起汽机功率的较大变化。
Experiment result also proves that system can improve the measuring precision effectively and then get the more accurate cable force in the case of not increasing the measuring time.
试验结果表明系统在不增加测试时长情况下能有效提高斜拉索固有频率估计的精度，从而能得到精确索力值。
The result aiming at efficiency analysis, after providing system ducting to the individual case company the valuation and suggestion of efficiency.
经由经营效率分析的结果，对个案公司提供系统导入后效益的评估及建议。
Moreover, children with leukaemia have a weakened immune system. If a germ enters their bloodstream via a wound, the result may be a fatal case of blood poisoning.
他说，而且，白血病患儿免疫系统差，如果病毒通过伤口进入血流，结果将会是一致命的毒血症。
As a application case, the water safety system pre-alarm model of Xiangjiang river basin was set up and the model simulation and the result analysis were carried out.
流域水安全预警模型可以对流域内的水质情况进行预警，作为一个实例，建立了对湘江流域水安全系统预警模型，并进行了模型仿真及其结果分析。
It is shown by design case and simulation result that the system designed with the proposed for the hydraulic turbine governing system has perfect stability and rob...
设计例子与仿真结果表明，根据该方法设计的系统有比较理想的鲁棒性和稳定性。
A use case is a description of a set of sequence of actions a system performs that yields an observable result of value to a particular actor.
用例是对一组动作序列的描述，系统执行这些动作，它们对一个特定的参与者产生一个有价值的可观察的结果。
Simulation result shows that the scheme is valid to suppress directional strong interference for STBC MIMO system although with some performance loss compared with the ideal case of non-interference.
仿真结果表明该方案虽然相对于理想无干扰的系统来说有一定的性能损失，但是能有效抑制空时分组码MIMO系统中的强定向干扰。
Case studies of IEEE 30-node system were calculated to analyze the impact of random elements, the compared result showed the proposed method has much higher speed and a higher degree of accuracy.
本文针对IEEE - 30节点系统，分析了各种随机因素对系统潮流的影响，并验证了本文方法的快速性和准确性。
Case studies of IEEE 30-node system were calculated to analyze the impact of random elements, the compared result showed the proposed method has much higher speed and a higher degree of accuracy.
本文针对IEEE - 30节点系统，分析了各种随机因素对系统潮流的影响，并验证了本文方法的快速性和准确性。
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