n.螺旋面，蜗牛式旋壳...

helicoid的音标：helicoid的英式发音音标为：['helɪkɔɪd]helicoid的美式发音音标为：['helɪˌkɔɪd]...

The ortho cone helicoid was used interrsect intercept by the ortho cone helicoid and the cylinder.正圆锥螺旋面是正圆柱螺旋面被同轴正圆锥面截得.The surface obtained when every point on the edge generates an involute is called helicoid.表面获得了在边缘...