词汇	洞諳
释义	洞諳 dòng ān通曉；很熟悉。
随便看	multilayer complex multilayer complex goaf multilayer component multilayer composites multilayer composite substrate multi-layer compound multi layer consolidation multilayer construction multi-layer construction multilayer contact multilayer contact material multilayer control multilayer control structure multi layer control structure multi-layer control structure multilayer copolymer multi-layer core shell multi-layer criteria multi-layer C/S multilayer cylinder multi layer cylinder multi-layer cylinder multi-layer data application multilayer database model multi-layer database system