封丘修防段为彻底消灭大堤隐患,需用八至十公尺长的大锥,这样就出现了接锥的新工作。经过在工作中的研究和改进,最后终于成功’方法是这样的:首先两个锥头烧熟后,分别打成相似而又短小的马蹄形,并使原来的锥略粗一些,前头尽量使其薄些。再将两个马 Fengqiu repair section to completely eliminate the hidden dangers of the embankment, the need to use eight to ten meters long cone, so there was a new cone then. After the work of research and improvement, and finally finally succeeded ’approach is this: First, after the two cones cooked, respectively, labeled similar and short horseshoe shape, and the original slightly thicker cone, try to make its front Thin. Then two horses