seepage proof

• 防渗

seepage proof的用法和样例：

例句

1. Many dams and levees need seepage treatment in our country.
   我国有许多大坝和堤防需要进行防渗处理。
2. Study on Lining Technique of Seepage Control of Canal in Caodian Irrigation Area.
   曹店灌区渠道防渗衬砌技术研究。