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- Stamping multistage pump 冲压多级泵
- The flows within the entire system must be carefully balanced in large scale and long distance water diversion projects with multistage pump stations. 为了保证大型长距离多级泵站引水工程运行中全系统的流量平衡,建立了全系统的仿真模型。
- It is shown after analysis that the efficiency of roto-jet pump is higher than theefficiency of multistage pump and express pump when it operates in the region of low dis-charge and high lift. 通过分析得出旋喷泵在小流量和高扬程工况下运行时，效率高于多级泵和高速泵，在研究旋喷泵集流管与叶轮匹配及集流管扩散段损失的基础上，给出了设计扩散管水力参数的公式。
- Improvement Design for Traditional Multistage Pump 传统多级泵的改进设计
- multistage pump = multi-stage pump 多级泵
- Abstract In adopting API method, the kinetic model of a multistage pumping rod system was simplified into mul tiple lumped masses connected in series by springs. 采用API方法时，把多级抽油杆系统动力学模型简化成由多个弹簧串联多个集中质量。
- By analysis and comparasion, it is proved that the newly simplified kinetic model of the multistage pumping rod system is more accurate and more reasonable than the kinet... 经分析和比较证实，现简化的多级抽油杆系统动力学模型比用前方法简化的长冲程抽油机的系统动力学模型更为精确合理。
- A new method for calculating the aperture and roughness of fissure, and the effective radius of groundwater by using the response curve of a multistage pumping test is presented. 利用从层流到紊流的多阶段稳定压水试验的压力-流量曲线反算裂隙张开度、粗糙度及地下水影响半径等裂隙参数。
- He is an active member of the school's stamp club. 他是学校集邮俱乐部的一名活跃会员。
- A Success Maintenance of Centrifugal Multistage Pump 一次成功的多级泵维护
- Technical performance parameter sheet for DL type multistage pump DL型立式多级离心泵性能参数表
- It is difficult to stamp out all the crimes. 很难把所有的犯罪都消除掉。
- The boy itches for a set of the new stamp. 男孩渴望得到一套这种新邮票。
- His face bears the stamp of suffering. 他的脸上有饱经苦难的烙印。
- Keywords Multistage Pump;Installation;Interstice Adjustmetn; 多级泵;安装;间隙调整;
- She was stamping about keeping her feet warm. 为了使脚暖和，她跺着脚走来走去。
- Help me stamp on that spider, mum. 妈妈，帮我踩死那个蜘蛛。
- My husband is a stamp collector. 我丈夫是个集邮者。
- He steamed the stamp off the envelope. 他用蒸汽把信封上的邮票揭下来。
- He is enamored of stamp collecting. 他迷恋于集邮。
