自由的食品市场由于市场信息不对称与不完全而失灵。
Free food market will be failure due to information imperfection and asymmetry.
将所提出的MR阻尼器不对称滞环模型应用在二自由度“四分之一”汽车模型，并用“空挂”控制律来实现对MR阻尼器阻尼力的自动调节。
The proposed asymmetric model of an MR-damper is employed in a 2-dof "quarter-car" model, and the "skyhook" control law is applied to implement variable damping deduced from the MR-damper.
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