石墨烯是由单层碳原子紧密堆积成二维蜂窝状晶格结构的一种碳质新材料，具有一些独特的物理特性。
Graphene is a honeycomb-like sheet of carbon just one atom thick with a number of unique physical properties.
相同的堆积密度下，选择稍厚的碳层可以延长电池一个周期内的使用时间同时对电池性能影响不大。
Thicker carbon layers at the same packing density can enlarger the operating time of DCFC in one period without harming the performances.
介绍了新开发的多产低碳烯烃高堆积密度催化剂rag7的特征。
Characteristics of the newly developed catalyst RAG 7 with high bulk density for more low end olefins were introduced.
她和沃德配合阐发了英国哥伦比亚海岸的海底堆积物，测定了差别范例的碳的露量。这些沉积物形成于上述两次大灭绝之间。
She and Ward analyzed seafloor sediments from the coast of British Columbia that accumulated during and between the two extinctions, measuring the ratios of different types of carbon.
她和沃德配合阐发了英国哥伦比亚海岸的海底堆积物，测定了差别范例的碳的露量。这些沉积物形成于上述两次大灭绝之间。
She and Ward analyzed seafloor sediments from the coast of British Columbia that accumulated during and between the two extinctions, measuring the ratios of different types of carbon.
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