The design follows the Open Closed Principle if you can extend the system by swapping out implementations of IDataSource without making any change to the BusinessProcess class.
如果你可以通过实现IDataSource对这个系统进行扩展并且不对BusinessProcess类做任何的修改，那么这个设计就遵循了开闭原则。
Setting up the support system for open class teaching management, including evaluation and motivation organism, feeding back channels, relevant technical support and regular evaluation.
第三，创建公开教学管理的保障机制，包括评价与激励机制，畅通的反馈渠道，相关的技术支撑和定期的效果评估。
Therefore, we need to learn from the cultural science Angle the open class teaching system, the material, as well as the teachers 'spiritual life in this research.
所以在公开课的研究中，我们需要从文化学的角度对公开课的制度、物质、以及教师的精神文化等各方面对其进行系统的阐述。
Forecast of first-class time parameters such as truck "s travel time and shovel" s loading time is an important problem for truck dispatching system in open-pit mines.
道路运行时间、电铲装车时间等一类时间参数的预测是露天矿卡车调度系统中的一个重要问题。
Forecast of first-class time parameters such as truck "s travel time and shovel" s loading time is an important problem for truck dispatching system in open-pit mines.
道路运行时间、电铲装车时间等一类时间参数的预测是露天矿卡车调度系统中的一个重要问题。
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