人类 发表于 2025-3-26 22:49:34
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Beth Middleton,Ab Grootjans,Kai Jensen,Harry Olde Venterink,Katalin Margócziion and training, research on educational applications and distance learning). In these papers the work in the groups is explained and a basis is given for the work of Professional Groups during the world conference. In the Professional Groups experts share their experience and expertise with other诱拐 发表于 2025-3-27 09:15:33
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Durability and Cover to Reinforcement,ure classes, cement type, concrete quality (controlled by a/c ratio and drying time) and climatic conditions (temperature, humidity) must be considered, too. At the end of the chapter, some case studies are dedicated to the choice of the minimum strength class of concrete and the evaluation of concr条约 发表于 2025-3-27 18:46:04
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