This article indicates the disadvantages of previous construction method for pipe culverts, and focuses on the construction method of pipe culverts under the condition of a new technology.

 
  • 介绍了以往圆管涵施工的弊端,着重介绍了新工艺施工条件下的圆管涵施工方法。
今日热词
目录 附录 查词历史