螺旋线的英文：
conchoid

Having a shape approximating that of a helix.
近似螺旋形的，近似螺旋线的

Of or having the shape of a helix;spiral.
螺旋形的，螺旋(线)的(拥有)螺旋形或螺旋线的;螺旋的

The spirally threaded shaft of a worm gear.
螺纹蜗轮的刻有螺旋线的柄

A number of silver discs arranged around a central helix to form a spiral
这些银圆片围着中心螺旋线排成一个螺旋体。

In other words such a molecule is pictured much as if it were a conducting helix
换句话说，这样一个分子的图象很像一条导电的螺旋线。

A wound spiral of two or more turns of insulated wire,used to introduce inductance into a circuit.
线圈两圈或两圈以上的绝缘导线绕成的螺旋线，用于产生电路的电感