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Secondary materials

Secondary materials

Secondary materials Secondary materials that have been manufactured and used at least once and are to be used again secondary standards national ambient air quality standards designed to protect welfare, including effects on soils, water, crops, vegetation, synthetic...
Self-assembly

Self-assembly

Self-assembly Self-assembly (also called Brownian assembly) is a term used to describe a spontaneous organization of individual pre-existing components into an ordered structure without human or supernatural invention. Self-assembly is generally considered a...