Large flatsheets of the icecap called ice shelves float in water near Antarctica.
大而扁平状的冰冠称作冰架，它们漂浮在南极洲周边的水域中。
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Christopher Chen of the University of Pennsylvania grew flatsheets of mesenchymal stem cells and exposed them to a mixture of growth factors for bone and marrow development.
By contrast, graphite is soft and slippery because its carbon atoms form "flat" bonds, resulting in sandwiched sheets of atoms that weakly attract one another.