Thesurfacetexture is the local deviations of a surface from its ideal shape e.g perfect flat shape, perfect cylindrical shape, spherical shape etc. The measure of the surface texture is generally determined in terms of its roughness, waviness and Form . Roughness The roughness of a manufactured ...
BS 4058-1987 数据处理流程图符号.规则和协定规范 (Specification for data processing flow chart symbols, rules and conventions) BS 4060-1989 压制羊毛毡规范 (Specification for pressed wool felts) BS 4062-1-1982 液压动力系统用阀门.第1部分:压差/流量特性的测定方法 (Valves for hydraulic fluid power sys...