冥界三河
发表于 2025-3-25 03:47:30
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真
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受伤
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CAMEO
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patriarch
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Veneer
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convert
发表于 2025-3-26 13:14:31
Vitrification and Devitrification of the Rigid Amorphous Fraction in Semicrystalline Polymers Revealed from Frequency Dependent Heat Capacity,e fraction. This observation leads to the introduction of a rigid amorphous fraction (RAF) which does not contribute to the heat of fusion or X-ray crystallinity nor to the relaxation strength at glass transition. The RAF is non-crystalline and in a glassy state at temperatures above the common glas
斜
发表于 2025-3-26 17:53:01
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