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本刊所有文章均要求标注3～5个中英文关键词。关键词包括主题词和自由词两部分。主题词是专为情报检索机构编制索引使用,是从自然语言的主要词汇中选取后
All articles in this publication are required to label 3 to 5 keywords in Chinese and English. Keywords include keywords and free words in two parts. Thesaurus is designed for indexing agencies used in intelligence retrieval, is selected from the main vocabulary of natural language