Dan Scheffer is vice-president of the manufacturing company, Vorbeck Materials.

Dan Scheffer 是制造公司 Vorbeck Materials 的副总裁。

Marten Scheffer said in a statement the study's predictions would mean " unlivable" conditions " for the ordinary, for poor people, for the average world citizen."

马丁·谢弗在一份声明中指出，这项研究的预测意味着环境“对普通人、穷人、普通的世界公民来说”不宜居住。

Mr. Scheffer says 100 percent pure graphene is difficult to make. But he adds manufacturers can make graphene of lesser purity that still has many of the features of the pure version.

Scheffer 先生说 100% 纯石墨烯很难制造。但他补充说，制造商可以制造纯度较低的石墨烯，但仍具有纯石墨烯的许多特性。

Mr. Scheffer says his company produces a layer of graphene that is 80 percent pure. Graphene can be mixed into ink for printers. Stretchable parts can be printed for products such as antennas for radio frequency identification circuits.

Scheffer 先生说他的公司生产了一层纯度为 80% 的石墨烯。石墨烯可以混入打印机的墨水中。可以为射频识别电路的天线等产品打印可拉伸部件。