六面体就是有六个面的空间形体,共分为正六面体(也叫正方体)、平行六面体、不规则六面体三类。棱长相等的长方体叫做正方体,又称“立方体”、“正六面体”。底面是平行四边形的四棱柱叫做平行六面体。形状不规则的称为不规则六面体。 六面体可能有0条、1条、2条、4条对角线,但没有3条对角线,也没有5条或更多的对角线。
n. hexahedron
平行六面体 parallelepiped ; parallellepipedum ; parallel hexahedron ; paralelepipedon
六面体陨铁 [地质] hexahedrite
四角化六面体 Tetrakis hexahedron
四六面体 [晶体] tetrahexahedron ; tetraxishexahedron
正六面体 [数] regular hexahedron ; Hexahedron ; [数] right parallelepiped ; cube
斜方六面体的 [数] rhombohedral
六面体的 hexahedral
双六面体 dihexahedron
它是由两个10×10米,且彼此相邻的平行六面体组成。
It is made up of two parallelepiped blocks of 10x10 meters placed next to each other.
在雨中跑步的这种情况下,你可以再次使用平行六面体来理解。
In the case of running through the rain, you can figure that out using parallelepipeds again.
它们被称为应力的九个分量,均示于图1。2中一点附近的无限小的平行六面体单元上。
These are known as the nine components of stress and are illustrated with reference to an infinitesimal rectangular element about a point in figure1.2.
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