意外地删除一个对象，然后用一个类似的对象替换它，将导致企业模型不可接受的差异。

Deleting an object accidentally and then replacing it with a similar object will lead to unacceptable differences of the enterprise models.

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例如，就在铝下面有一个空位，这表明还有一个性质和铝类似的新元素存在。

For example, a gap just below aluminum suggested a new element would be found with properties analogous to those of aluminum.

youdao

对他来说，它也是一个鼻子，因为它的末端有一个类似杯子的空缺，杯子的底部有两个洞，动物可以通过它们来嗅闻和呼吸。

It is also a nose to him, for at the end of it there is a empty place like a cup, and in the bottom of the cup are two holes, and the animal smells and breathes through them.

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