实践表明，磨矿分级效率得到进一步提高。
The practice has shown a further improvement on the grindingclassification efficiency.
对湿式除尘机理进行了理论分析，导出了湿式除尘器分级效率的计算公式。
The dedust mechanism of wet scrubbers is analysed and studied in detail.
同时，利用分级球磨技术还可以缩短生产时间，提高生产效率。
Grading ball milling can also shorten production time and raise efficiency of production.
同时，利用分级球磨技术还可以缩短生产时间，提高生产效率。
Grading ball milling can also shorten production time and raise efficiency of production.
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