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ecological recycling
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ecological recycling
生态循环
在生态系统中,物质从环境开始,经生产者、消费者和分解者,最后回到环境中去,完成一个从简单无机物到有机复合物,最终又回到简单无机物的过程。
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commutative graded algebra
commutative group
commutative group object
commutative groupoid
commutative group scheme
commutative half-algebra
commutative hypergroup
commutative identity
commutative lattice
commutative law
commutative law of addition
commutative law of multiplication
commutative Lie algebra
commutative Lie group
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commutatively convergent series
commutative matrices
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commutative operator ring
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