招惹
发表于 2025-3-25 03:47:31
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嬉耍
发表于 2025-3-25 09:52:03
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BROTH
发表于 2025-3-25 11:43:20
Recent Advances in Columbium Alloys,trength and good ductility and that are readily fabricable and weldable are commercially available. These alloys were the first of the columbium base alloys to receive serious consideration for use in components on actual flight systems. Emphasis in the development of new columbium alloys over the p
nonchalance
发表于 2025-3-25 18:24:35
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Ancestor
发表于 2025-3-25 23:05:05
The Less Common Refractory Metals (Rhenium, Technetium, Hafnium, Noble Metals),tallurgy of rhenium and of technetium, an artificial element which has only recently become available in sufficient amount for metallurgical studies to be possible, are surveyed. New data on phase equilibria, mechanical and physical properties and availability are included. Special attention is also
放气
发表于 2025-3-26 03:49:25
Conference proceedings 1968hington Hilton Hotel on April 25-26, 1968, under sponsorship of the Refractory Metals Committee, Institute of Metals Division, of the Metallurgical Society of AIME, and the National Aeronautics and Space Administration. The Symposium presented critical reviews of selected topics in refractory metal
睨视
发表于 2025-3-26 07:07:03
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调味品
发表于 2025-3-26 11:27:46
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轻快来事
发表于 2025-3-26 13:07:42
Interactions in Coated Refractory Metal Systems,roblems that control coating life; and metallic claddings. Methods to solve the complex interaction effects are discussed and illustrated by low temperature oxidation problems of refractory silicide coatings, crack arresting effects of porosity in coatings, coatings containing a molten phase, and low pressure effects.
Keshan-disease
发表于 2025-3-26 20:19:56
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