They adopted a few measures such as improving finenessofgrinding ores, increasing secondary cleaning, using additional typed reagent and so on, thus making the technical indexes raised markedly.
The grindability test has a moderate range of degree offineness and departure from the range would result in excessive consumption ofgrinding work.
易磨性试验存在一个适宜的细度范围，偏离这一范围就有可能导致粉磨功的大量消耗。
3
It has a great influence on the quality of mine's chosen whether the decision ofgrinding technology is reasonable, so sufficient study on grinding fineness is necessary.