发酵剂 发表于 2025-3-25 05:18:14
Gas Hydrate Disasters, in various forms, including layered, disseminated, and veined structures. With the increase of offshore drilling activities, the problem of geological hazards caused by gas hydrate has attracted more and more attention.Abutment 发表于 2025-3-25 08:32:26
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Local invariants of mappings of surfaces into three-space,into Euclidean 3-space. We show that, besides the numbers of pinch and triple points, there is exactly one integer invariant of such mappings that depends only on local bifurcations of the image. We express this invariant as an integral similar to the integral in Rokhlin’s complex orientation formul让步 发表于 2025-3-26 06:01:27
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Steven S. Coughlin,Yasmin Cypelrs on land degradation. It also calls for the localized diagnostic of the drivers of land degradation. The drivers of land degradation are predominantly local, so actions to address them should be based on the understanding of the local interplay of various factors and how they affect land degradation.夜晚 发表于 2025-3-26 19:14:38
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