传统激光束中间部分明亮而边缘部分较暗，而螺线管状光束则是一个高能量的明亮螺旋。

Unlike traditional lasers, which are bright in the middle and dimmer at the edges, a solenoid beam contains a bright spiral of intense energy.

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如果你把一只螺纹贝壳放在桌上，螺旋面朝上，绝大多数的螺线是顺时针方向从中心到边缘展开。

If you place a spiralling shell down on the table with the spiral facing up then in most shells the spiral evolves in a clockwise orientation from the centre of the shell out.

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右旋的软体动物的螺形外壳上的螺线顺时针螺旋即顶点向上，面对观察者时，螺线向。

Of or relating to a gastropod shell that coils clockwise and has its aperture to the right when facing the observer with the apex upward.

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