Read Edit View history 双凸面 shuāngtūmiàn biconvex Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 双凸面/雙凸面 · shuāngtūmiàn · biconvex 2026/03/04 双凸面 / 雙凸面 shuāngtūmiàn biconvex having two convex surfaces, especially referring to an optical lens 这种光学仪器使用了双凸面透镜来聚焦光线。 created sense Mar 4, 2026, 02:25 AM