語言選擇:
免費網上英漢字典|3Dict

direct sum

資料來源 : WordNet®

direct sum
     n : a union of two disjoint sets in which every element is the
         sum of an element from each of the disjoint sets
依字母排序 : A B C D E F G H I J K L M N O P Q R S T U V W X Y Z