Sputum
发表于 2025-3-25 03:36:47
he synthesis of macro- and micromechanics of fracture. The analytical mechanics of fracture is used treating a system “cracked body — loading” as a mechanical one with unilateral non-holonomic constraints. Comparison is performed between the generalized forces of the analytical mechanics of fracture
使激动
发表于 2025-3-25 09:02:14
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Morphine
发表于 2025-3-25 14:26:54
Infinity,A variety of numbering systems were developed to support bigger and bigger numbers. It’s natural to ask what the biggest number is. There were two different opinions in ancient time. Some didn’t think the question make sense. It’s already big enough like thousands or millions in everyday life.
交响乐
发表于 2025-3-25 17:26:07
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FLAT
发表于 2025-3-25 23:56:12
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condone
发表于 2025-3-26 02:47:06
Symmetry, unique but follows the same hexagon symmetric pattern. When stepping into the garden in spring, we see all kinds of the beautiful flowers with radial symmetry, while in the woods in autumn, the matured fruits, spikes, and the colorful leaves demonstrate an amazing canvas in the language of symmetry.
antenna
发表于 2025-3-26 07:02:10
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无能力之人
发表于 2025-3-26 09:19:56
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不适
发表于 2025-3-26 15:33:14
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Ischemic-Stroke
发表于 2025-3-26 19:04:33
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