可微结构群 [数] group of differentiable structures
群体结构 group structure ; population structure ; population components ; Colony structure
群落结构 Community Structure ; microbial community structure ; Plant Community Structure
植物群落结构 structure of plant community
群能结构 group energy structure ; structure group energy
伪群结构 [计] pseudo-group structure
精细群结构 fine-group structure
年龄结构种群模型 age-structured population model
细菌群落结构 Bacterial community ; bacterial community composition
然后，我们将看到微分同胚群作用下的辛商为特殊子流形模空间上的以环面为结构群的丛。
And then we will see that in the framework of diffeomorphism group the symplectic quotient is torus bundle over the moduli space of special submanifold.
结果表明，焊缝金属中存在的非金属夹杂物，在低应力作用下形成微裂纹成为裂源，加之焊缝组织中存在大量的M A结构群，从而发生焊缝金属在室温下的解理断裂。
The results showed that nonmetallic inclusions in weld seam served as crack initiation site under external bend load, and large amount of m a structure resulted in cleavage fracture of weld seam.
建筑群的结构组织让人瞠目结舌，古人是如何在没有电脑技术的帮助下切割成如此精确的巨大结构的？
The construction is breath taking and one wonders how the early generation managed to build such mega structures with perfection without the aid of computer technology.
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