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Desert science
containing
外生 的
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all forms
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in specified order only
Chinese
English
体外寄生的
epibiotic
外生的
ectotrophic
生态系统的外部界限边界
external boundary of ecosystem
(指任一生态系统的阈值,人类活动一旦超过这一阈值就能引起不可逆的生态变化)
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