Surface defect and macrostructure of high carbon steel billet were analyzed.介绍了铸坯相关表面缺陷及低倍组织,提出了质量控制措施及方案.Macroproposition: It is the general proposition used to form an overall macrostructure of the story.宏观命题: 它是用来形成故事...

n.宏观结构...

macrostructure的音标：macrostructure的英式发音音标为：[mækrəʊ'strʌktʃə]macrostructure的美式发音音标为：['mækroʊˌstrʌktʃə]...