self-dualWiktionary 原文英美构词拆解self-前缀+dual词干self-Of, by, in or with oneself or itself. · Automatic.词源说明From self- + dual.释义形容词adjective1(linear algebra) Of a vector space, isomorphic to its dual space.2(mathematics, in projective geometry) Of a proposition that is equivalent to its dual.3(mathematics) Of a graph