研究人员首先在单晶体 TiO2 平面上制作一层或两层的单分子硒化铅量子点。
The researchers began by making samples of one or two monolayers of PbSe quantum dots deposited on flat single-crystalline TiO2.
目前为止，石墨烯带的制作都是通过自顶向下的方法，如用激光从大片石墨烯层上“剪”出带状或是“剖”开碳纳米管。
Until now, these graphene nanoribbons were made using top-down approaches, such as "cutting" the ribbons from larger graphene sheets or "unzipping" carbon nanotubes.
这套轻质家具由奥古曼产的胶合板制作而成。他们是由一层层的圆环累积而成，模拟出峡谷或山的形状。
Made of plywood Okoume, this lightweight pieces are constructed by a series of layers rings pile up together, simulating the shape of a canyon or mountain.
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