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

单词	tea and horse trade
释义	tea and horse trade Encyclopedia 农学林业经济史释 tea and horse trade茶马互市中国古代西部和北部从事畜牧业经济的少数民族，用马匹等牲畜和畜产品，与内地换取茶叶、布匹、铁器等生产、生活必需品的比较集中的大规模集市性贸易活动。始于唐代，盛于宋、明、清，长达千余年。
随便看	closed-loop controlled circuit closed loop control principle closed-loop control systems closed loop evaluation and reporting closed loop experiment closed loop guidance closed loop orbit closed-loop pressurization closed loop servo system closed loop supply chain closed-loop supply chain closed loop system closed loop test closed-loop test of flight control system closed-loop vector method closed magnet unit closed manifold closed mapping closed mixed-refrigerant cycle liquefaction process closed model Closed Mondays closed monoidal category closed morphism closed motor skill closed n-ball

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