pumping pump up

• 泵送

pumping pump up的用法和样例：

例句

1. The upstream pumping mechanical seal was used as shaft sealing of vacuum plants.
   研究了上游泵送机械密封在真空装备轴封中的应用。
2. This paper analyzes the characteristics of large pump concrete and the cause of Concrete crack, provides corresponding prevention measures.
   摘要文章分析泵送混凝土特点及大体积混凝土裂缝产生的原因，提出防治措施。