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中国科学引文数据库(CSCD)分为核心库和扩展库。核心库的来源期刊经过严格评选,是各学科领域中具有权威性和代表性的核心期刊。扩展库的来源期刊也经过大范围遴选,入选者是我国各学科领域较优秀的期刊。
China Science Citation Database (CSCD) is divided into core libraries and extension libraries. The core journals of the source journals after rigorous selection, is the authoritative and representative core journals in all disciplines. The source journals of the extension library have also been selected by a large margin, and the winners are the best journals in various fields of our country.