重叠概念描述

[计] overlapping concept description

chóng dié gài niàn miáo shù ㄔㄨㄥˊ ㄉㄧㄝˊ ㄍㄞˋ ㄋㄧㄢˋ ㄇㄧㄠˊ ㄕㄨˋ