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recycling network
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在环境管制和经济利益的驱动下,由具有参与活动能力的行为主体,在主动或被动地参与活动过程中,通过回收资源的流动,形成的一些彼此之间正式或非正式的关系总和。
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elliptical extragalactic nebula
elliptical galaxy
elliptically contoured distribution
elliptically contoured distribution family
elliptically curved oval
elliptically polarized light
elliptically polarized radiation
elliptically polarized wave
elliptical motion
elliptical nebula
elliptical orbit
elliptic alpha-function
elliptical polarization
elliptical projection
elliptical radio galaxy
elliptical space
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elliptical waveguides
elliptic argument
elliptic barrel
elliptic bearing
elliptic boundary-value problem
elliptic capacity
elliptic case
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