obesity
发表于 2025-3-21 18:33:28
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emission
发表于 2025-3-21 23:56:23
Aluminium-Based Materialsermal treatment in an autoclave at a temperature between 160 and 25°C and under a pressure between 5 and 50 AT for a period between 20 minutes and 4 hours. During hydrothermal treatment aluminium trihydroxide is converted into aluminium oxyhydroxide, containing 0.01–25%. Cr.O. and/or Fe.O..
CUB
发表于 2025-3-22 02:06:00
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mitral-valve
发表于 2025-3-22 06:10:48
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Debrief
发表于 2025-3-22 12:46:38
Ceramic and hard materials, intermediates, based on aluminium and aluminium oxides, containing 0.5 to 15 w.% N.O., followed by granulation of the compacted material and heat treatment of the granules obtained. From this material various products can be made like balls, cylinders, small plates, etc.
大笑
发表于 2025-3-22 16:11:58
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特别容易碎
发表于 2025-3-22 19:29:07
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条约
发表于 2025-3-22 22:46:11
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弓箭
发表于 2025-3-23 02:49:14
Aluminium-Based Materialsspension of aluminium trihydroxide, the suspension also containing soluble chrome and/or iron components. This suspension is then exposed to a hydrothermal treatment in an autoclave at a temperature between 160 and 25°C and under a pressure between 5 and 50 AT for a period between 20 minutes and 4 h
时代错误
发表于 2025-3-23 06:50:04
Materials Predominantly Based on Boronter than 1 or 1 and x = z, but not equal with y. The hard material is obtained by exposing boron, nitrogen and carbon containing materials to conditions, permitting the formation of the hard material, for example under a pressure of min. 50 kbar and a temperature between 1300 and 2000°C.