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- From the basic principle of remanufacturing, this paper has done some research on remanufacture of the 1750m3/h dredging pump shell. 本文从再制造的基本原则出发，围绕1750m3/h挖泥船泥泵壳再制造进行了一定的研究。
- Immersible degrees in oil wells with low pump efficiency were adjusted by using the relation curves. 利用该关系图对泵效低下的油井沉没度进行调整,取得了较好的效果。
- Pump efficiency calculation formula are deriredand methods are given to improve pump efficiencythrough changing swabbing parameters. 推导出了泵效计算的有关公式，说明了如何改变抽吸参数提高泵效的方法。
- Field use shows that the new tubingless oil production unit has the advantages of high pump efficiency, low cost and easy operation. 现场使用情况表明，新型无油管采油装置具有泵效高、投资少及作业方便等优点。
- The pump can also be employed in organic analysis with ethanol carrier, and the pump efficiency and other electrokinetic properties were amoliorated by carrier additives. 电渗泵也可用于有机分析，采用乙醇载流和添加 剂，泵效率和其它电动性能均有改善。
- In the case of high stable mean-wavelength operation, the DPB SFS with the optimized reflector has a linewidth and pump efficiency obviously larger than SFSs in other configurations. 在光源高稳定性的前提下,反射镜参数优化后的该结构光源具有较宽的频带宽度和较高的抽运效率。
- The test results have proved that the flow rate widely varied and the pump efficiency is high when the pump outlet line structure was altered and the outlet pressure was controlled in a special limit. 试验结果表明，改变泵出口管线结构，使泵出口压力在一定范围内工作时，流量变化大，而且泵效率较高，可以作为泵调整参数的一种手段；
- Design and Realization of Protection Unit of Dredging Pump 挖泥船泥泵保护装置的设计与实现
- Based on the similitude law of pumps,presents the method for determining the pump efficiency under different working conditions with variable spe. 利用水泵相似定律,给出了确定变转速运行时各工况点水泵效率的等效率曲线法。
- Reverse design and process simulation of dredging pump impeller 疏浚泥泵叶轮的反求设计及加工仿真
- Three stage-takedown reconstructions are made to the oil pumps in Xongxian Station so as to improve pump efficiency and cut down power consumption. 为提高泵压的利用率,减少耗电量,对任京线雄县泵站的输油泵先后进行了三次拆级改造,并安装了一台小功率输油泵,以实现输油泵的经济运行。
- The results show that some models with the bionic non-smooth working surfaces are very effective, with the pump efficiency enhancement of 3.45%, that means its growth rate of 6.81%. 对比试验表明，在离心式水泵的有效工作流量范围内，某些仿生改形表面的模型具有十分明显的效果，效率提高最大为3.;45%25，最大增效率为6
- Excessively long stroke impels few increase in pump efficiency and will effect the fatigue life of the whole pumping system. 而冲程过大时泵效提高的幅度不大,反而影响整个抽油机系统的疲劳寿命。
- The characteristics of LT type high elastic friction clutch and its application in dredge pump transmission system are introduced in this paper. 着重介绍了我国LT型高弹性摩擦离合器的性能特点及其在挖泥船泥泵传动中的应用实例。
- They are dredging for the dead body. 他们在捞尸体。
- These results are very important for improving the performances and increasing the pumping efficiency of EDFA. 掺铒光纤放大器工作在饱和状态下,绿色荧光功率随输入信号功率增加而增加。
- Theoretical Study on the Pumping Efficiency of Coupling System Described by Paraxial Approximation[J]. 引用该论文 李传东;鄢雨;胡文涛;周复正;张正泉;徐至展.
- The coal slag in the sedimentation pond is sucked by an overhead travelling crane with a self sucking dredge pump and introduced into a concentration pool for further sep... 该装置使用后效果较好,造气污水实现了闭路循环,达到了零排放,亦取得较好的经济效益。
- The series of mechanical seal is applicable for self-priming dredge pump,oil residue pump or granular mud pump, with features of minor axial direction and compact structure. 本列系机械密封适应在自吸排污泵，油渣泵或含有颗料的泥浆泵，优点是：轴向短，结构紧凑。
- The formulas for mechanical, hydraulic, cubage and overall pump efficiencies are given theoretically. 从理论上分析和表达了水泵机械效率、水力效率、容积效率及总效率；
