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平台:
EBSCOhost Academic Search Complete
(Available from 1990/05/01 until 1995/06/30.)
EBSCOhost Environment Complete
(Available from 1990/05/01 until 1995/06/30.)
EBSCOhost OmniFile Full Text Select
(Available from 1994/01/02 until 1995/04/30.)
EBSCOhost Science Reference Center
(Available from 1990/05/01 until 1995/06/30.)
ProQuest Agricultural & Environmental Science Database
(Available from 1988/01/01.)
ProQuest Earth, Atmospheric & Aquatic Science Database
(Available from 1988/01/01 volume: 42 issue: 4.)
ProQuest SciTech Premium Collection
(Available from 1988/01/01 volume: 42 issue: 4.)