Since the material was first created in 2004, its unique electronic and mechanical properties have amazed researchers who say that it could be used in a host of device applications.
自2004年这种材料发现以来，它独特的电学和机械性能令研究人员震惊，他们认为石墨烯可用于多种器件的制造。
As I noted earlier, since the material is introduced linearly, they often get the information after they first need it.
正如我前面所提到的，由于这些资料具有介绍时间上的先后顺序，所以同学们经常会在他们第一次需要他们之后才能得到这些信息。
As I noted earlier, since the material is introduced linearly, they often get the information after they first need it.
正如我前面所提到的，由于这些资料具有介绍时间上的先后顺序，所以同学们经常会在他们第一次需要他们之后才能得到这些信息。
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