A hydraulic impact machine is a special machinery, its main output working parameters are impact energy and impact frequency.
液压冲击机械是一类特殊的机械设备，其性能参数的数据采集和测试系统的设计一直是各国学者的研究热点。
This paper analyses the working parameter adjustment principles of abroad and at home hydraulic impact machine, and shows their defects.
分析了国内外液压冲击机械工作参数调节原理，并指出其主要缺陷。
On account of the hydraulic impact machine being applied rapidly in many fields, it brings forward their higher technique capability for different working conditions.
由于液压冲击机械在各个行业中的迅速推广应用，为适应不同的作业条件，对其技术性能提出了更高的要求。
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