Results indicate that the precondition method can capture shocks accurately, and inlet performance variations characteristics agree well with the theory results.
进气道性能随工作条件的变化规律，与理论分析一致。
Precondition tests are handled by before advice, which is executed just before the corresponding method execution join point.
前置条件测试由before建议处理，该建议就在对应的方法执行连接点之前执行。
Dividing road cell is the necessary precondition to develop road safety evaluation method.
道路单元划分是建立道路安全评价方法的必要前提。
应用推荐