裙带关系 发表于 2025-3-26 21:55:55

Recovery of Sintered Carbide Material in Electrochemical Machining Processre costly rare metals. In this report, the feasibility of a process on recovery of tungsten and cobalt by changing soluble substances into insoluble ones was investigated, in which process tungsten as calcium tungstate and cobalt as cobalt hydrate. It was found that the tungsten and cobalt compounds could be recovered by the proposed processes.

花费 发表于 2025-3-27 05:12:47

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Obstacle 发表于 2025-3-27 09:07:39

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栖息地 发表于 2025-3-27 11:38:59

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2否定 发表于 2025-3-27 14:18:25

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sterilization 发表于 2025-3-27 21:04:33

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要塞 发表于 2025-3-27 22:11:31

Nursultan Kainbayev,Mantas Sriubas,Zivile Rutkuniene,Kristina Bockute,Saltanat Bolegenova,Giedrius Le concrete policy recommendations for Europe..The book will appeal to students, scholars, and researchers of political science and international relations, as well as policy-makers interested in a better understanding of Europe‘s role in the US-China rivalry and its relationship to the two countries

anthropologist 发表于 2025-3-28 05:37:36

Amin Al-Tabich,Wataru Inami,Yoshimasa Kawata,Ryszard Jablonskiysts also point to divergences in transatlantic approaches to the Indo-Pacific and Europe’s inherent limitation in projecting and sustaining hard power at a time when its security is under serious threat as a result of the Russian invasion of Ukraine.

Fallibility 发表于 2025-3-28 07:26:27

Sergei A. Khakhomov,Vladimir E. Gaishun,Dmitry L. Kovalenko,Alina V. Semchenko,Vitali V. Sidsky,Wiesysts also point to divergences in transatlantic approaches to the Indo-Pacific and Europe’s inherent limitation in projecting and sustaining hard power at a time when its security is under serious threat as a result of the Russian invasion of Ukraine.

善于骗人 发表于 2025-3-28 12:29:19

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查看完整版本: Titlebook: Recent Advances in Technology Research and Education; Proceedings of the 1 Giedrius Laukaitis Conference proceedings 2019 Springer Nature S