【摘要】 阐述了初撑力在单体液压支柱与液压支架应用中的初撑力保证作用，并指出了初撑力保证方法的应用前景。更多还原

【Abstract】 This paper deals with the fundamental conception and affection of the setting load,andsets forth the setting load pledged affection in the applical of the power suppord and individed hydranlicprope of the setting load pledged va1ve. In the end,the paper points out the application vista of the settingload pledged methods.更多还原