evince
发表于 2025-3-26 22:58:27
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amphibian
发表于 2025-3-27 03:06:16
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银版照相
发表于 2025-3-27 07:26:24
Tomislav Pintauer,Krzysztof Matyjaszewskie from their conversations about quality learning and teaching demonstrate a high level of expertise. Yet such professional knowledge is often deeply embedded within each teacher’s everyday teaching; the tacit knowledge that determines how and why they attend to student learning in certain ways. Thi
变化
发表于 2025-3-27 10:11:17
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虚弱的神经
发表于 2025-3-27 14:03:19
Discovery and Development of FI Catalysts for Olefin Polymerization: Unique Catalysis and Distinctiv have been discovered on the basis of the “ligand oriented catalyst design concept,” a new catalyst design concept for olefin polymerization. The concept has created a series of highly active FI catalysts, many of which display high activities comparable to those of group 4 metallocene catalysts. In
恸哭
发表于 2025-3-27 19:20:31
Hafnocene-Based Olefin Polymerizationsdue to a lack of productivity while using MAO activation. In the last few years borane and borate activation has come into the focus of research for olefin polymerization. A variety of different hafnocenes were used to investigate the polymerization mechanism and the different cocatalysts..Differenc
吵闹
发表于 2025-3-27 22:52:21
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旧病复发
发表于 2025-3-28 05:18:35
Iron-Based and Cobalt-Based Olefin Polymerisation Catalysts,6-bis(imino)pyridine iron and cobalt halides, on activation with MAO, can convert ethylene to highly linear polyethylene, numerous reports have been concerned with ligand modification, mechanisms for precatalyst activation, identifying the active species and understanding the mode of propagation/ch
flammable
发表于 2025-3-28 06:47:07
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