octahedra

简明释义

英[ˌɑːk.təˈhɛ.drə]美[ˌɑːk.təˈhɛ.drə]

n. 正八面体

英英释义

单词用法

同义词

反义词

例句

1.The rare earth ions lie between the disilicate groups and the sheets of octahedra to form (8+3)-coordinated A(1)-polyhedra and 10-coordinated A(2)-polyhedra.

稀土离子位于双硅酸根和八面体层之间，形成（8+3 ）配位的A（1）多面体和10配位的A（2 ）多面体。

2.The rare earth ions lie between the disilicate groups and the sheets of octahedra to form (8+3)-coordinated A(1)-polyhedra and 10-coordinated A(2)-polyhedra.

稀土离子位于双硅酸根和八面体层之间，形成（8+3 ）配位的A（1）多面体和10配位的A（2 ）多面体。

3.In geometry class, we learned that the octahedra 八面体 is a polyhedron with eight triangular faces.

在几何课上，我们了解到octahedra 八面体 是一种具有八个三角形面的多面体。

4.The artist used octahedra 八面体 in her sculpture to create an interesting visual effect.

艺术家在她的雕塑中使用了octahedra 八面体 来创造有趣的视觉效果。

5.In chemistry, certain molecules can be modeled as octahedra 八面体 to understand their spatial arrangement.

在化学中，某些分子可以被建模为octahedra 八面体 以理解它们的空间排列。

6.The game features dice shaped like octahedra 八面体, which adds variety to the gameplay.

这个游戏的骰子呈octahedra 八面体 形状，增加了游戏的多样性。

7.Architects sometimes use octahedra 八面体 in their designs to create unique structures.

建筑师有时在他们的设计中使用octahedra 八面体 来创造独特的结构。

作文

The world around us is filled with fascinating shapes and structures, each with its own unique properties and significance. One such shape that captures the imagination of mathematicians, architects, and artists alike is the octahedron. An octahedron is a three-dimensional geometric figure with eight triangular faces, twelve edges, and six vertices. The beauty of this shape lies not only in its symmetry but also in its versatility across various fields. In mathematics, octahedra (八面体) serve as fundamental building blocks in geometry, helping to illustrate complex concepts such as volume and surface area. For instance, when calculating the volume of an octahedron (八面体), one can use the formula V = (1/3) * base area * height, which exemplifies how simple shapes can lead to intricate mathematical relationships. In architecture, the presence of octahedra (八面体) can be observed in various designs, particularly in domes and other structural elements. The octahedral shape provides stability and strength, making it an ideal choice for constructing durable buildings. Famous structures, such as the geodesic dome, often incorporate octahedra (八面体) in their design, showcasing the practical application of this geometric form. Furthermore, the aesthetic appeal of octahedra (八面体) has inspired many artists throughout history. From sculptures to paintings, the interplay of light and shadow on the surfaces of octahedra (八面体) creates mesmerizing visual effects that captivate viewers. In nature, octahedra (八面体) can be found in the crystalline structures of certain minerals. For example, the mineral fluorite often forms in an octahedral shape, demonstrating how these geometric forms are not just confined to human-made objects but are also prevalent in the natural world. This connection between mathematics and nature highlights the importance of octahedra (八面体) in understanding the physical universe. Moreover, the study of octahedra (八面体) extends into the realm of chemistry, particularly in the field of molecular geometry. Certain molecules adopt an octahedral shape due to the arrangement of their atoms. For example, sulfur hexafluoride (SF6) exhibits an octahedral geometry, which is crucial for predicting its chemical behavior and reactivity. The ability to visualize and comprehend the structure of molecules like SF6 through the lens of octahedra (八面体) underscores the interconnectedness of different scientific disciplines. In conclusion, the octahedron (八面体) is more than just a geometric shape; it is a symbol of the harmony between mathematics, art, architecture, and nature. Its presence in various fields demonstrates the significance of understanding geometric forms, as they play a vital role in both theoretical and practical applications. By exploring the properties and implications of octahedra (八面体), we gain deeper insights into the world around us, enriching our appreciation for the beauty and complexity of shapes that define our reality.