Alveoli
发表于 2025-3-28 18:08:22
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fructose
发表于 2025-3-28 22:01:42
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迅速成长
发表于 2025-3-28 23:29:05
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V切开
发表于 2025-3-29 05:08:06
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是限制
发表于 2025-3-29 08:54:49
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无孔
发表于 2025-3-29 14:49:25
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脆弱么
发表于 2025-3-29 18:27:01
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nuclear-tests
发表于 2025-3-29 20:11:59
Nanoscale Modification of Cementitious MaterialsSilica fume and multiwall carbon nanotubes (MWCNTs) were used as micro- and nano-modifiers. An effective method of dispersing CNTs in cement matrix was developed. A detailed study on the effects of CNTs concentration and aspect ratio on the fracture properties, nanoscale properties and microstructur
碎片
发表于 2025-3-30 03:55:37
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ciliary-body
发表于 2025-3-30 06:31:27
Engineering of SiO2 Nanoparticles for Optimal Performance in Nano Cement-Based Materialst of portland cement with nano-SiO. and superplasticizing admixture was investigated. Experimental results demonstrate an increase in the compressive and flexural strength of mortars with developed nanoparticles. The distribution of nano-SiO. particles within the cement paste plays an essential role