以下为句子列表：
英文: 631 What does the test marketing show?
中文: 试销说明了什么？
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英文: Article 20 Trial products from the transformation of scientific and technological achievements may be provided for test marketing within the verified period for trial sale, in accordance with State regulations governing products for trial sale and after a
中文: 第二十条科技成果转化的试验产品，按照国家有关试销产品的规定，经有关部门批准，可以在核定的试销期内试销。
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