“grassland tea-horse trade”的概念、定义、翻译、参考文献-科学参考

单词	grassland tea-horse trade
释义	grassland tea-horse trade Encyclopedia 农学〔草原文化〕释 grassland tea-horse trade草原茶马贸易中国西部少数民族多从事畜牧业，用马匹、牛、羊等牲畜和动物皮革等畜产品与内地农耕民族交换其生产的茶叶、布帛、铁器等生产生活必需品的大规模集市性贸易活动。是“茶马互市”的重要内容。“互市”是历史上对外国或异民族之间贸易的通称。
随便看	difference of partial sums difference of sets difference of successes difference of two convex sets difference of two sets difference of two squares difference operator difference pattern difference poset difference product difference proportion difference quotient difference ring difference scheme difference semigroup difference sequence difference series difference set difference table difference triangle set differencing different different association theory different from zero differentiability

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