GORGE
发表于 2025-3-27 00:07:16
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伦理学
发表于 2025-3-27 03:48:35
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浮雕
发表于 2025-3-27 07:06:13
The Biological Applications of Titanium and Titanium Alloyslloys, stainless steel and the cobalt-chromium casting alloy known as Vitallium were extensively used for surgical implants, but although both were reasonably satisfactory, many failures had been recorded and many people were searching for a better alloy. It was natural, therefore, for this new ‘won
jumble
发表于 2025-3-27 10:58:50
Metallurgy of Orthopaedic Implantshe 20th century when bone plates and bone screws were introduced for the fixation of long bone fractures, the best available material, vanadium steel did not possess the necessary strength or corrosion resistance for long-term implantation. During the 1940s two materials became widely used in surgic
Irremediable
发表于 2025-3-27 16:26:57
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ARY
发表于 2025-3-27 20:18:23
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为宠爱
发表于 2025-3-27 23:43:22
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胆大
发表于 2025-3-28 05:49:03
978-94-010-8492-5Martinus Nijhoff Publishers, Dordrecht 1986
Detain
发表于 2025-3-28 08:06:50
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Guaff豪情痛饮
发表于 2025-3-28 11:47:11
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