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  Air

Sigma KEE - Air

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空气
Air 是组成环绕地球大气层的气体物质。
Relationships      
Parents 混合气体 Any Mixture that satisfies two conditions, viz. it is made up predominantly of things which are a Gas and any component other than Gas in the Mixture is in the form of fine particles which are suspended in the Gas.
Children 气流AirStream is the class of FlowRegions that consist of air.


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