单词	toroid
释义	toroid /ˈtɒrɔɪd / /ˈtɔːrɔɪd/ noun Geometry A figure of toroidal shape.A toroid generated by a circle; a surface having the shape of a doughnut.... Polyamines also induce the collapse of isolated long DNA chains from dilute solutions with formation of toroids showing a local hexagonal packing of DNA. By contrast, the central region of Macrobdella Hb contains a hexagonal toroid at a resolution of 4 nm.
随便看	opera house opera magica operance operancy operand operant opera queen opera semiseria opera seria opera singer operatable operate operatee operatic operatical operatically operatics operating budget operating crew operating instructions operating manual operating profit operating room operating system operating table

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