求翻译：① 龙源期刊网：据中国期刊协会的推荐和读者调查，收录了中国大陆具有代表性的800多种著名人文电子期刊全文。期刊收录范围自1997年开始。是什么意思？

① Longyuan Journal network: According to the China Periodicals Association's recommendation and the reader survey, a collection of mainland China with 800 kinds of well-known representative of the full-text humanities electronic journals. Journals included in the range since 1997.

1 dragon periodicals Web: According to the Chinese Periodical Association recommended and readership surveys of mainland China, are included in the representative of more than 800 famous humanities full text electronic journals. Inclusion of journals since the beginning of 1997.

① Dragon source periodical net: According to the Chinese Periodical Association's recommendation and the reader investigated, include mainland China to have the representative 800 many kinds of famous humanities electron periodical full text.The periodical including scope started from 1997.

① long Yuan journal network: it is recommended and the China periodicals Association of readership surveys, included the China representative of more than 800 species of well-known Humanities full text electronic journals. Journals indexed range since 1997.

① long Yuan journal network: it is recommended and the China periodicals Association of readership surveys, included the China representative of more than 800 species of well-known Humanities full text electronic journals. Journals indexed range since 1997.