Hydraulic pumps 基本例句 液压泵 The direction for use and maintenance as well as the service failure and trouble shooting of hydraulic pumps that have been widely used for production of carbon and graphite products are introduced. 介绍了液压泵的使用原理，并针对炭和石墨制品生产过程中液压泵系统的特定工作环境，分析了液压泵故障产生的原因及排除液压泵故障的方法。 cnki