spiraln.螺旋；螺旋形之物；不断恶化、增加或减少v.螺旋移动；盘旋上升；不断恶化、增加或减少adj.螺旋形的；盘旋的spiral tap螺旋丝锥,螺旋槽丝锥

1. Something,such as the thread of a screw or the spiral condenser in a still,that resembles a worm in form or appearance.
   有螺纹状的物品某物，如螺旋线或蒸馏器的螺旋冷凝器，在构成或外表上像蠕虫。
2. The continuous spiral thread upon the deformed reinforcing bar is formed by eliminating portions of longitudinal ribs that are formed upon the reinforcing bar during manufacturing.
   在该异形加强筋上的连续的螺旋形螺纹是通过去除在制造过程中在该加强筋上形成的部分纵向肋而形成的。