For example, the pre - and post-conditions, inputs, and outputs of the use case define the service dependencies, boundary, and data requirements.
例如，用例的前置及后置条件、输入和输出定义服务依赖关系、边界和数据要求。
2
By using shooting method, the obtained boundary value problem is numerically solved and the equilibrium paths as well as the post buckled configurations of the deformed beam are given.
采用打靶法求解该边值问题，获得了数值意义上的精确解，给出了梁的过屈曲平衡路径及平衡构形。
3
Globe placement system (GPS) is a satellite emplacement and navigation net system, Which can navigate and emplace fire fighters. GPS can also be used in calculating the boundary and area of post fire.