water protection and drainage

• 防排水

water protection and drainage的用法和样例：

例句

1. The research results will provide references to tunnel waterproofing and drainage system design in high water pressure and water-enriched regions including subsea regions.
   研究成果对类似高水压富水区以及海底隧道防排水设计具有一定的参考价值和借鉴作用。