| | 题名 | Investigation of the Effect of Impact Loading on Concrete Beams |  | 链接 | http://www.istructe.org/journal/volumes/volume-60-(published-in-1982)/issues/issue-15/articles/investigation-of-the-effect-of-impact-loading-on-c | 
 本帖最后由 genghis 于 2015-7-23 03:57 编辑 
 
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