degree of roughness meaning in English

粗糙程度
粗糙度

2 . several processing methods to concrete surfaces were analyzed , and their advantages and disadvantages were analyze through experiment , the relationship of the water - jet stress and the degree of roughness and the bond strength of the old concrete surface was researched when treating the surface of the old concrete with spraying high - press water
2 .分析目前常用的几种旧混凝土表面的处理方式,并对每种方法的优缺点进行评述,通过实验研究高压水射法处理旧混凝土表面,射水压力和旧混凝土表面粗糙度及界面粘结强度的关系。
Scientific research and design institute of cscec in guizhou cooperate with prof . peng xiaoqin , and research the bond technology of the new and old concrete . which are researched to four points as follows : 1 . several major methods evaluating the degree of roughness were analyzed , and their advantages and disadvantages were analyzed
贵州中建建筑科研设计院与重庆大学材料学院彭小芹教授合作,主要对新旧混凝土粘结技术进行了研究,主要集中在以下几个方面: 1 .分析目前常用的几种评价粗糙度的方法,并对每种方法的优缺点进行评述;提出一种简便易行的测量粗糙度的方法,克服目前常用方法的缺点,并通过多组数据和灌砂法进行相关性分析,得出两者之间的关系。