A unit validator contains logic that validates a single type of unit and is broken into capability and attribute validators.
一个单元确认器包含了确认单个类型单元的逻辑，它被分解为功能与属性确认器。
Unit is a base type that represents a unit of deployment in a topology model.
单元就是代表拓扑模型中一个部署单元的基本类型。
A superficial way of creating a new kind of unit is to copy an existing unit and give it a caption that suggests that it is a different type of unit.
创建新类型单元的一种方式是复制一个已存在的单元，并给其起一个能够表面不同类型单元的标题。
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