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recycling network
回收网络
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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Coal Miners Series
coal mine safety regulation
coal mining
coal moisture control
coal non combustible
coal non-combustible
coal noncombustible
coal occurrence tectonic units
coal oil blended fuel
coal oil co refined
coal oil co-refined
coal oil mixture fuel
coal-oil mixture fuel
coal-oil mixture fuel; COM fuel
coal petrography sample
coal petrology
coal plough
coal preparation
coal preparation system of circulating fluidized bed boiler
coal pre-prospecting
coal production
coal prospecting
coal pulverized system
coal pulverize maintenance
coal pyrolysis
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