破碎比是指破碎过程中原废物粒度与破碎产物粒度比值， 即废物粒度在破碎过程中减少的倍数与破碎机能量消耗和l处理能力有关。破碎是指利用外力克服回体废物质点间的内聚力而使大块固体废物分裂成小块的过程。分离成小块的固废还可以进行粉磨，使小块固体废物颗粒分裂成细粉。破碎比( reduction ratio)是衡量破碎机的破碎效果，常用破碎比这个概念。破碎机的破碎比就是原料粒度与破碎后产品粒度之比。
岩石破碎比功表征钻井中破碎单位体积岩石的功耗量。
The rock crushing work ratio denotes the work used to break rock of per volume in drilling.
优化破碎腔的颚式破碎机可提高破碎机的产量、破碎比且可降低颚板钢耗。
Jaw crusher wit optimized crushing chamber has high output, high crushing ratio and low steel consumption for jaw plate.
与同规格其它机型破碎机相比，破碎比相同时产量更高；产量相同时细粒级产品含量更多。
Compared to other cone crushers with the same scale, apart from the advantage of high yield, the fine proportion in final production is also higher.
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