休耕地
发表于 2025-3-21 18:23:40
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数量
发表于 2025-3-21 21:29:05
Eduardo García-Río,Demir N. Kupelieine oder andere der Urgroßeltern, und alle, die für einen von diesen Platz gemacht haben. Zu denen, die Platz gemacht haben, gehören frühere Ehepartner oder eheähnliche Partner von Eltern und Großeltern, und es gehören dazu alle, deren Weggang, oder Unglück, oder Verlust, oder Schuld anderen den Zu
Mettle
发表于 2025-3-22 03:04:21
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名义上
发表于 2025-3-22 05:04:49
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证实
发表于 2025-3-22 10:57:27
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Conscientious
发表于 2025-3-22 14:24:56
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让空气进入
发表于 2025-3-22 20:26:03
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figurine
发表于 2025-3-22 22:34:40
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milligram
发表于 2025-3-23 05:02:55
Second Fundamental Form of a Map,gely in the analysis of certain properties of maps between manifolds in the literature. However, in this chapter, we study the second fundamental form of a map only as much as we need to carry out our work on semi-Riemannian maps. We devote the first section to the definition and basic properties of
幼儿
发表于 2025-3-23 08:20:37
Semi-Riemannian Maps, as “isometric as it can be.” Hence, as one expects, the existence of a semi-Riemannian map between semi-Riemannian manifolds enables us to compare some geometric properties of the semi-Riemannian manifolds in its domain and range. Clearly, this concept is a generalization of the notion of isometry.