相对压下量 meaning in Chinese

relative reduction

Abstract : the lubricating condition of cold rolling is affected by many factors . this paper shows the relationship between the friction coefficient and three rolling parameters , such as rolling speed , reduction and concentration of rolling lubricating oil
文摘:主要研究了在冷轧过程中,轧机辊缝摩擦系数受轧制速度、相对压下量以及乳化液浓度因素影响的变化规律。