Optimum LAI最适叶面积指数optimumadj.最佳的；最适宜的n.最适宜optimum blanking clearance冲裁合理间隙optimum extraction process最佳提取工艺optimum switching-levels最佳门限值optimum maintenance period最优维护周期optimum factor combination最适度因素结合optimum fusion temperature最佳熔化温度optimum interception course最佳截击航向optimum synthesis condition最佳合成条件optimum width-depth ratio最佳宽深比optimum transmitted current最佳传输电流