物质分离分析
Substances isolation and analysis
分层角色访问控制
the role-layering access control model
角质层
Cuticles
cuticle layer
cuticle
stratum corneum
horny layer
periostracum
cuticula
horny layer， stratum corneum
cuticular membrane
cuticular layer
corncum
Cornified layer
corneum
Laminated layer
corneous layer
角质层的水化作用
Hydration of stratum corneum