2 文書を見つけるための辞書。

• stratification
• 層化
• forming or depositing in layers
• 層を形成する、または層に堆積する

• stratify
• 層化, 層別
• form, arrange, or deposit in layers; "The fish are stratified in barrels"; "The rock was stratified by the force of the water"; "A statistician stratifies the list of names according to the addresses"
• 層において形成、配列、堆積する