- The set of reachable objects is the transitive closure of the root set under the points-to relation.
可到达的对象集是指向关系下根集的传递闭包。
- We have just defined four important sets in terms of the transitive closure of four very simple relations.
我们根据四个非常简单的关系的传递闭包，恰好完成了四个重要的集合。
