总之，一旦确定了此关系，就可以在类图中明确地表达出来，说明两个目标的类之间的联系。
Anyway, once this relationship has been identified, it can be made explicit in a class diagram that shows the associations among the two classes of goals.
UML 1 . x语言对于为类建模功能强大，这些关系包括面向对象的关系，例如联系、附属、组合、聚合与泛化。
The UML 1.x language is powerful for modeling how classes relate in terms of object-oriented relations such as associations, dependencies, compositions, aggregations and generalizations.
铜多金属矿床与中酸性岩类有成因联系，银多金属矿床与酸性岩类关系更密切。
The copper polymetallic deposits are genetically related to intermediate-acidic rocks, and the silver polymetallic deposits are more closely related to acidic rocks.
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