基本解释n.粗加工；草拟动词rough的现在分词形式.同根派生 英汉例句用作名词 (n.)The model is tested by a typical die-cavity roughing, and shortening machining time and balancing cutting-load can be attained.通过典型模具型腔的粗加工试验验证，证明该进给率优化策略不仅可以缩短加工时间，而且可以使加工载荷均匀。