In a lab study, metals leached out from cement-mortar linings at levels that impel water suppliers to be selective when choosing cement for lining pipes.
实验室研究表明，水泥砂浆涂衬析出的金属量促使供水人员对管道涂衬所用的水泥应有所选择。
2
Cementmortarlining technology is often resorted to when corrosive water is to be carried.
水泥砂浆衬里技术是一项应用较广的实用技术，一般在输送有一定腐蚀性水质时采用。
3
Red bricks lining should be done with cementmortar.