Block
论文:基于基坑内承压降水井的防水与封堵技术探讨 论文网 关键词】基坑;降水井;封堵 [gap=521]Key words】Pit;Dewatering well;Block
formation sealing
... 封闭稳定good isolation 封堵formation sealing 封堵剂formation sealant ...
plugging
西安市黑河金盆水利枢纽导流洞封堵施工技术-专家论文 关键词:导流洞;封堵;施工技术 [gap=3489]Key words: diversion tunnel; plugging; construction technique