Read Edit View history 螺旋曲面 luóxuánqūmiàn helicoid Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 螺旋曲面 · luóxuánqūmiàn · helicoid 2026/03/04 螺旋曲面 luóxuánqūmiàn helicoid spiral surface 螺栓的螺纹可以被视为一个螺旋曲面。 created sense Mar 4, 2026, 02:25 AM