为了使过程最优化, 目标函数的公式是必不可少的.In order to optimize the process, formulation of objective function is necessary.在经济学最优化问题中所含的变量差不多总是带有某种约束条件.In economic optimization problems the variables involved are almost always subject to ...
把操纵杆向你身体一侧拉动以调节速度。Pull the lever towards you to adjust the speed.他两眼直瞪着前方,拉足了操纵杆.He kept his eyes straight on before and opened the lever wide.隐藏弹射座椅的操纵杆.Hide the ejector seat levers....