预粉磨分为循环预粉磨、混合粉磨、联合粉磨和半终粉磨。
Pre-grinding is consisted of cycle pre-grinding, hybrid grinding, and combination grinding and semi-finished grinding.
结合生产实例，论述了半终粉磨与分选技术在粉煤灰大型化粉磨作业中的应用。
Combined with some cases in production, a discussion about the application of the techniques of semi-finish grinding and separation to the large-scale grinding of fly-ash is made in this paper.
辊压机半终粉磨系统在新建干法水泥生产线及水泥粉磨站中，近年来逐渐被广泛采用。
Semi-finishing grinding systems with roller press are used more and more in new-built PC production lines and cement grinding stations.
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