bottom-up

自下而上的,指从多个较小次级单元整合为单一大型基本单元的分层体系。

Of or relating to a hierarchical system that progresses from multiple small subunits to a single, large basic unit.

从细节到整体的方法

of an approach to a problem that begins with details and works up to the highest conceptual level

分层体系中较低层级影响较高层级的。

Of or relating to a hierarchical system in which lower levels influence higher levels.