光辉之四边形体 Shining Trapezohedron
四边形四分体 tetragonal tetrad
金属晶体之四边 grain boundary
四边形单元体特性 quadrilateral element characteristic
非四边形等离子体波导 nonguadratic plasma waveguide
紫外线成像显示出的绿色漩涡以及可见光形成的图像揭示了氢和硫磺气体的存在，它们受发自四边形的强紫外线的辐射而变热并形成等离子体。
Swirls of green in Hubble's ultraviolet and visible-light view reveal hydrogen and sulfur gas that have been heated and ionized by intense ultraviolet radiation from the Trapezium's stars.
棱柱（体），角柱（体）多面固体，上下两底面大小、形状相同，且彼此平行，其余诸面则为平行四边形。
A solid figure whose bases or ends have the same size and shape and are parallel to one another and each of whose sides is a parallelogram.
提出方便实用的、适合于内外域交界面为四边形或六面体情况的几何变换函数。
A convenient and applied geometric transformation function, which is suit for interface of quadrangle or hexahedron, is proposed.
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