理学 层 释 bed 层 对于识别度高、横向延伸较远且具有特殊地质意义的一个或多个单层所划分的岩石地层单位。
＞代数几何＞代数曲线＞释义 sheaf 层 lamina 层，片 layer 层 sheaf 层†，束 stratum 层† tier 层，等级
网络与数据通信 协议体系与组成结构 释文 layer 层
- primary mediastinal tumor
- primary meristem
- primary messenger
- primary metabolism
- primary metabolite
- primary metabolites fermentation
- primary metabolites of medicinal plants
- primary migration
- primary mineral
- primary minimum
- primary mirror
- primary mirror-cell
- primary module
- primary motor cortex
- primary movie market
- primary mycelium
- primary myelofibrosis
- primary noise thermometry
- primary obstruction
- primary of hydrogen bomb
- primary olfactory cortex
- primary oocyte
- primary operaton
- primary operator
- primary optical axis