stone setter

用法例句

On the basis of the in-depth investigation into the quality common fault in pointing of the cement-rubble project on the reaches of Zhang river,the author analyzes the cause of the cavitating of the pointing,and brings forward some approaches to prevent the quality defect and improve the quality of the cement-rubble.

通过对漳河上游浆砌石工程勾缝质量问题的深入调查,分析了勾缝空鼓的原因,并有针对性地提出了防治措施。