Professor Spinks said carbon nanotubes were so far only 10 centimetres long, often impure, and there were the logistical problems of building a continuous ribbon.

• Spinks教授说单壁碳纳米管目前为止只有10厘米长，经常含有杂质，并且建造这样一根连续的带子还有后勤上的问题。