基本解释:吸粉封补
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By calculating the radial displacement of the mobile column and the cylinder, the seal-compensation and seal-swelling principle of the hydraulic prop were analyzed.介绍了柱塞悬浮式液压支柱的技术原理和结构特点;通过对支柱活柱筒体和油缸筒体径向位移量的计算,分析了液压支柱密封补偿和密封胀紧原理。0At汉语字典
