bottom-up

详细解释:【计】 自底向上

英语解释：

形容词 bottom-up:

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

详细解释：

bot.tom-up

adj.（形容词）
Progressing from small or subordinate units to a larger or more important unit, as in an organization.
从细节到总体的，从个别到全貌的，自下而上的：逐步从小的或下级的单位向较大或较重要单位前进，如在组织中