程序归约reduction: n. 1.缩小,减少;降级,降位;(刑罚等的)轻减;减速 ...reduction program: 归约程序cost reduction program: 降低成本计划cost-reduction program: 降低成本计划costs reduction program: 成本降低计划下载手机词典可随时随地查词查翻译