We might then more simply create n-ary subtrees of "as many plains as possible."
然后，我们就可以更简单地创建“plain尽可能多”的n - ary子树了。
2
Its primary motivation is to reduce the elapsed time of federated queries by enabling overlapped processing of remote queries that provide data to n-ary operators.
其主要动机是通过允许重叠处理提供数据给n - ary的操作符的远程查询，减少联邦查询所花费的时间。
3
The Repository model is a simple hierarchy and looks much like an n-ary tree.