Read Edit View history 凸缘 tūyuán flange Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 凸缘/凸緣 · tūyuán · flange 2026/03/04 凸缘 / 凸緣 tūyuán flange flange 这两个管道是通过凸缘连接在一起的。 noun created sense Mar 4, 2026, 02:25 AM