He points out that a similar spin-filtering of photons due to Bragg diffraction has been seen in cholesteric liquid crystals, which also have a helical structure.
他指出，由于布拉格衍射效应，在同样具有螺旋结构的胆甾相液晶中也观察到了类似的光子自旋滤波。
2
The e-sail craft would then spin to deploy a giant structure of centrifugally stretched wires that resembles the spokes of a wheel.
电子帆飞船将离心式旋转，类似于一个巨大的车轮辐条结构。
3
Spin-forging press machines body structure is a very important basic part, whose strength and stiffness influence the performance of the whole machine directly.