凸缘车轮或管道上突出的边、缘、肋条或环圈，用来增加物体强度、固定物体或使某一物体附着在另一物体上 A protruding rim, edge, rib, or collar, as on a wheel or a pipe shaft, used to strengthen an object, hold it in place, or attach it to another object.
突出体突出的物体 Something that protrudes.
突出的趋于伸出的；伸出的 Tending to protrude; protruding.
她最为突出的特点是诚实。 Her predominant characteristic is honesty.
