基本解釋[經(jīng)濟(jì)學(xué)]負(fù)象限詞組短語(yǔ)短語(yǔ)non -negative orthant 非負(fù)象限negative orthant更多詞組專(zhuān)業(yè)釋義經(jīng)濟(jì)學(xué)負(fù)象限