词汇	alternacy
释义	al·ter·na·cy AHDˈȯltərnəsē🌏交替的
随便看	hierarchical roles hierarchical route-flnding hierarchical routing hierarchical routing algorithm hierarchical routing bus hierarchical routing network hierarchical routing tree Hierarchical RTI hierarchical rules hierarchical rules for semantic interpretation hierarchical sampling hierarchical schedule model hierarchical scheduling hierarchical schematic hierarchical schematic data hierarchical school hierarchical search hierarchical-search hierarchical security hierarchical segmenting hierarchical selection hierarchical self-organization hierarchical semantic matching rules hierarchical semantic network hierarchical semantic relation