【摘要】 液压冲击器的结构设计与密封选择的探讨从液压冲击器的工作原理分析入手，着重讨论了液压冲击器的典型结构设计的思路和方法，并对与其有关的密封选择作了简述更多还原

【Abstract】 The thoughts and nlethods of the typicalstructllral design for a hydralllic thrust borer are emphaticallydideussed tllrough analyzing the work principle of the hydraulic thrustborer and ils relevant sealing selection is briefly outlined in thispaper:更多还原