材料属性通过分层模型描述的翻译：Material properties through a tiered model description 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

Material properties described by the hierarchical model

Material properties through a tiered model description

正在翻译，请等待...

material properties through stratified model description

Material properties through a tiered model description