dry stone drain

例句：

1. 1. The construction of the new road will significantly improve the dry stone drain system in the area.
   新路的建设将显著改善该地区的干石排水系统。
2. 2.The engineer designed a dry stone drain to divert water from the flooded area.
   工程师设计了一个干石排水系统，以将洪水从受灾区域引走。
3. 3.The dry stone drain was installed to prevent soil erosion and maintain the stability of the riverbed.
   安装干石排水是为了防止土壤侵蚀并保持河床的稳定性。