双凸面 shuāngtūmiàn biconvex Definitions Defs Origin Strokes Stroke Words Sentences Sents 双凸面 (雙凸面) shuāngtūmiàn biconvex having two convex surfaces, especially referring to an optical lens Sources Definitions CC-CEDICT
双凸面 (雙凸面) shuāngtūmiàn biconvex having two convex surfaces, especially referring to an optical lens Sources Definitions CC-CEDICT
