Tests in laboratory and industry have shown that ball_milling with variable rotational speed can raise the efficiency of ball_milling by a big margin and improve the processing quality of the powders.
实验室和工业应用试验结果表明，变转速球磨方法不仅能较大幅度地提高球磨效率，而且能对粉料加工质量产生明显的影响。
Then, adopting reactive current margin and harmonics as control and protection variable, an expert system was formed to control thyristor switched capacitor.
以无功电流差补值作为控制参量，并以高次谐波电流作为谐振保护信号，由专家系统给出投切无功补偿电容的控制指令。
Then, adopting reactive current margin and harmonics as control and protection variable, an expert system was formed to control thyristor switched capacitor.
以无功电流差补值作为控制参量，并以高次谐波电流作为谐振保护信号，由专家系统给出投切无功补偿电容的控制指令。
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