第一个步骤是“以虚代实”：魔术师秀出一个真实的东西，一副牌、一只鸟或一个人，让你看这样东西，叫你检视它，看它的确是真的，平常的不得了。
The magician shows you something ordinary: a deck of cards, a bird or a man. He shows you this object.
历史的虚幻，建筑的真实，这一虚一实之间，我们就从过往走回到现实，再从这里向下一个经典。
Between the imagination of history and the real construction, we go back to the reality from the past , and to the next classic.
该方法能真实地再现交通事故中汽车的实际碰撞过程，但是，汽车实车碰撞是破坏性试验，需要较大的试验场地，研究成本较高。
This method can reproduce the real collision course of the automobile in the traffic accident, however, it is a destructive test and needs the large test site and costs most.
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