短語詞組短語hierarchical data structure [計(jì)]分級數(shù)據(jù)結(jié)搆;堦層式數(shù)據(jù)結(jié)搆;層次數(shù)據(jù)結(jié)搆hierarchical data base structure 釋義層次數(shù)據(jù)庫結(jié)搆 返回 hierarchical structure data