The system developed by Xeros, a spin-off from the University of Leeds, in England, uses thousands of tiny nylon beads each measuring a few millimetres across.

• 这一系统是由英国利兹大学的资产分拆公司克赛罗斯（Xeros）研发的，他使用了成千的微尼龙珠子，每一颗横截面仅几毫米。