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closed drainage
closed drainage basin
closed duct
closed eaves
closed ecological system
closed economics
closed economy
closed economy model
closed edge train
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closed ecological system
➞
closed ecological system
Definitions
[1] 封闭的生态系统
[2] 密闭生态系统
[3] 闭合生态系统
[4] 闭路生态学系统
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closed ecological system