“close packing”的概念、定义、翻译、参考文献-科学参考

close packing

Physics

The packing of spheres so as to occupy the minimum amount of space. In a single plane, each sphere is surrounded by six close neighbours in a hexagonal arrangement. The spheres in the second plane fit into depressions in the first layer, and so on. Each sphere has twelve other touching spheres. There are two types of close packing. In hexagonal close packing the spheres in the third layer are directly over those in the first, etc., and the arrangement of planes is ABAB…. In cubic close packing the spheres in the third layer occupy a different set of depressions than those in the first. The arrangement is ABCABC…. See also cubic crystal.

http://mathworld.wolfram.com/CubicClosePacking.html An interactive demonstration of cubic close packing

http://mathworld.wolfram.com/HexagonalClosePacking.html An interactive demonstration of hexagonal close packing

Chemistry

The packing of spheres so as to occupy the minimum amount of space. In a single plane, each sphere is surrounded by six close neighbours in a hexagonal arrangement. The spheres in the second plane fit into depressions in the first layer, and so on. Each sphere has 12 other touching spheres. There are two types of close packing. In hexagonal close packing the spheres in the third layer are directly over those in the first, etc., and the arrangement of planes is ABAB… In cubic close packing the spheres in the third layer occupy a different set of depressions than those in the first. The arrangement is ABCABC… Close packing occurs when the maximum possible fraction of a space is occupied by equal spheres, with this fraction being. $π / (3 \sqrt{2}) ≃ 0.74048.$ See also cubic crystal.
https://www.chemtube3d.com/_ccpfinal/ An interactive version of cubic close-packing
http://mathworld.wolfram.com/HexagonalClosePacking.html An interactive version of hexagonal close packing

Chemical Engineering

A packing arrangement of spherical particles, such as catalysts, in which there is a minimum amount of space around them. For each spherical particle, there are twelve other particles in contact. The voidage is the space between the spheres.

单词	close packing
释义	close packing Physics The packing of spheres so as to occupy the minimum amount of space. In a single plane, each sphere is surrounded by six close neighbours in a hexagonal arrangement. The spheres in the second plane fit into depressions in the first layer, and so on. Each sphere has twelve other touching spheres. There are two types of close packing. In hexagonal close packing the spheres in the third layer are directly over those in the first, etc., and the arrangement of planes is ABAB…. In cubic close packing the spheres in the third layer occupy a different set of depressions than those in the first. The arrangement is ABCABC…. See also cubic crystal. http://mathworld.wolfram.com/CubicClosePacking.html An interactive demonstration of cubic close packing http://mathworld.wolfram.com/HexagonalClosePacking.html An interactive demonstration of hexagonal close packing Chemistry The packing of spheres so as to occupy the minimum amount of space. In a single plane, each sphere is surrounded by six close neighbours in a hexagonal arrangement. The spheres in the second plane fit into depressions in the first layer, and so on. Each sphere has 12 other touching spheres. There are two types of close packing. In hexagonal close packing the spheres in the third layer are directly over those in the first, etc., and the arrangement of planes is ABAB… In cubic close packing the spheres in the third layer occupy a different set of depressions than those in the first. The arrangement is ABCABC… Close packing occurs when the maximum possible fraction of a space is occupied by equal spheres, with this fraction being. $π / (3 \sqrt{2}) ≃ 0.74048.$ See also cubic crystal. https://www.chemtube3d.com/_ccpfinal/ An interactive version of cubic close-packing http://mathworld.wolfram.com/HexagonalClosePacking.html An interactive version of hexagonal close packing Chemical Engineering A packing arrangement of spherical particles, such as catalysts, in which there is a minimum amount of space around them. For each spherical particle, there are twelve other particles in contact. The voidage is the space between the spheres.
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