但负责标注经济衰退的起止点的一个顶尖经济学家的民间团体——全国经济研究局做出了更完善的定义。
But a more refined determination is made by the National Bureau of Economic Research, a private group of leading economists charged with dating the start and end of economic downturns.
由中国经济贸易界有代表性的人士、企业和团体组成的全国民间对外经贸组织。
BenCham strives to strengthen business, government and community ties between Benelux organisations and individuals in China .
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