oil pumping meaning in Chinese
（活塞环）泵油作用
（气缸）上油
抽油
窜油
油品泵送
Examples
- Specifications for powder metallurgy oil pump gears
粉末冶金机油泵齿轮.技术条件 - Fire accident analysis and control about hot oil pump
热油泵房火灾事故分析及控制 - Types and basic parameters of centrifugal oil pumps
离心油泵.型式与基本参数 - Specification for construction and acceptance of oil pump set
输油泵组施工及验收规范 - Camshaft , balanceshaft , injection pump , oil pump
凸轮轴,平衡轴,喷射泵油泵