怎么查是sci还是ei

1，Search Results 0 records found in Compendex & Referex for: ((Large-Scale Production Technology for G657 Fiber with Ultra Low Bending-Induced Loss) WN TI), 1969-2012 Your search retrieved 0 Check to make sure that you have entered valid search terms, or try broadening your 2，需要英文文章题目的，中文题目没法在EI核心数据库中查询哦~

看出处来源就可以知道啦