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平台:
EBSCOhost Academic Search Complete
(Available from 2009/12/01.)
EBSCOhost STM Source
(Available from 2009/12/01.)
ProQuest SciTech Premium Collection
(Available from 2003/01/01 until 2019/11/30.)
SAGE Open Access Journals
(Available from 1999/01/01 volume: 23 issue: 1.)