... 名字: Crakes 姓: J 标签: J Crakes ...
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N any of several rails that occur in the Old World, such as the corncrake and the spotted crake 秧鸡 [zoology]
The causes of arisen crakes and fracture propagation are studied in this article. It also sums up the new technology at home and abroad and evaluates the measures of protecting the arch dam body.
分析了拱坝坝体裂缝的产生原因，并对目前国内外预防和处理拱坝裂缝的新措施、新技术进行较全面的总结和评价；
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