It has been proven by tests that the rock breaker is a new practical and economical secondarybreaking equipment. The application prospect of the rock breaker will be bright.
研究和试验表明，劈石器是一种新型、实用、低成本的矿岩二次破碎设备，具有广阔的应用前景。
2
High-energy hydraulic hammer with liquid cushion is a new and highly efficient equipment used for the secondarybreaking of ore boulder occurred very often in domestic and foreign mines.
液垫式高能液压碎石器是解决目前国内外矿山普遍存在的矿岩大块二次破碎问题的新型高效设备。
3
Crack spreading area and transient breaking are observed, typical fatigue striations, fatigue steps and secondary cracks are observed on some of the fractures.