丁合い; 丁合; 分級作用River and Water Resources Glossary (Infrastructure Development Institute Japan) ; 分別(bunbetsu)Environmental Terminology Glossary (Patrick Oblander) ; ふるい分け作用River and Water Resources Glossary (Infrastructure Development Institute Japan) ; 淘汰(とうた)River and Water Resources Glossary (Infrastructure Development Institute Japan)
並べ替え(A method of arranging data based on the order of specified information. For example, records sorted by class would list all records within a class before moving to records in the next class)