pumping pump up的用法和樣例：
例句
- The upstream pumping mechanical seal was used as shaft sealing of vacuum plants.
研究了上游泵送機械密封在真空裝備軸封中的應用。 - 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點(diǎn)及大體積混凝土裂縫產(chǎn)生的原因，提出防治措施。
