The following points were emphasized: the hollow structure of core can improve yieldability and reduce the shrinkage stress;
主要强调以下几点:提高型让性,以减小收缩应力,将
子做成中空结构效
明显;
The following points were emphasized: the hollow structure of core can improve yieldability and reduce the shrinkage stress;
主要强调以下几点:提高型让性,以减小收缩应力,将
子做成中空结构效
明显;
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