Therefore, the detention volume of compound outlets would be smaller than the rectangular outlets under the same inflow hydrograph. 故本复合式出流口设计，于入流条件相同下，其所需之最小滞洪容积较矩形窄口式为小。
Based on the generalized dynamic inflow theory and classic non-steady aerodynamic loading theory, a real time model is obtained by establishing wake distortion and decay. 在广义动态入流理论的基础上，基于经典非定常气动载荷理论，建立了尾迹畸变和尾迹耗散的实时分析模型。
