| 1. | The last of these figures known to plato is the icosahedron .
柏拉图知道的最后一个这种构形是正二十面体。 |
| 2. | The icosahedron has the greatest number of faces , so it is the most common choice for making a geodesic dome
正二十面体是拥有最多面的柏拉图方体，所以它最常用于建造短线圆顶。 |
| 3. | The icosahedron has the greatest number of faces ( 20 ) , so it is the most common choice for making a geodesic dome
正二十面体是拥有最多面的柏拉图方体，所以它最常用于建造短线圆顶。 |
| 4. | In order to improve the roundness of the icosahedron , its surfaces are divided into smaller ones and more points are raised to the surface of the sphere
为了令正二十面体的外形更接近球体，我们把它的面分解成更小的面，并将更多的端点升到球体表面。 |
| 5. | Illustration credit : kevin sahr , denis white in order to improve the roundness of the icosahedron , its surfaces are divided into smaller ones and more points are raised to the surface of the sphere
为了令正二十面体的外形更接近球体，我们把它的面分解成更小的面，并将更多的端点升到球体表面。 |
| 6. | This form of construction is strong and has the additional advantage of enclosing a given volume with the least possible use of materials . geodesic domes are actually derived from regular polyhedra . those that are derived from the dodecahedron and the icosahedron have joints where 5 distinct triangles meet
由正十二或正二十面所建而成的短程线圆顶特色是当中的一些接驳点由五个三角形组成而由正八面体所建立的圆顶则可以分割成四分之一或四分之三个。 |
| 7. | This form of construction is strong and has the additional advantage of enclosing a given volume with the least possible use of materials . geodesic domes are actually derived from regular polyhedra . those that are derived from the dodecahedron and the icosahedron have joints where 5 distinct triangles meet
由正十二或正二十面所建而成的短程线圆顶特色是当中的一些接驳点由五个三角形组成；而由正八面体所建立的圆顶则可以分割成四分之一或四分之三个。 |
