The two special cement coatings are applicable to sewage pipeline internal corrosion for ductile iron pipe, improve the ability to resist the erosion of acid components in sewage.
这两种特殊水泥涂层均适用于污水管道用球墨铸铁管的内防腐，提高抵抗污水中酸碱成分的侵蚀能力。
The most common way to restore the sand lost to erosion is to pipe it from the ocean floor back up to the beach.
储存沙最常见的方法就是用管子把它从海底重新运回海岸。
The erosion-abrasion, which is one of the main reasons of the leakage of the power-station boiler-conduit-pipe 'contra-flow heating-surface, accounts for 75% or more of the accidents of the boiler.
冲蚀磨损是电站锅炉对流受热面管道泄漏的主要原因之一，占到锅炉事故的75%以上。
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