Patent is an important part of scientific and technical literature, and it is playing a more and mor

中文解释

2对科技文献的利用情况进行了调查研究,统计表明,随着时代的发展,科研人员对科技文献的利用在数量和质量上都呈增长趋势;

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liter 村落 going away 鞋面 easy money 最近 accountable for sth the first decade of the 21th century 21 a mass of hot air