以下为句子列表：
英文: The Primary characteristic and research development was introduced in the electro-hydraulic hammer technology in both domestic and aboard.
中文: 摘要介绍了国内外电液锤技术的主要特征、发展及现状。
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英文: To counter the ore-rock with different characteristics,the theory of wave mechanics on impacting machinery was used in combination with the results of digital emulation study of hydraulic hammer machine to obtain the output impact energy of hydraulic hamm
中文: 针对不同特性的矿岩，运用冲击机械波动力学理论，并结合液压碎石器的数字仿真研究结果，得出液压碎石器的输出冲击能与液压碎石机的主机功率，从而为合理选用液压碎石机锤头及底盘提供了参考依据。
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