1.
low-head centrifugal pump
低水头离心泵，低扬程离心泵
2.
Study on the Technology and Design of Aie-filled Floating Flap Valve about Lowhead Pumping Station;
低扬程泵站充气浮箱拍门的技术研究
3.
Study on Water Conservancy Characteristic Conversion for Low-lift Pumping Station and Performance Prediction;
低扬程水泵装置水力特性换算与性能预测研究
4.
The Development and Application of Energetic Test System for Low Head and Large Discharge Pumping Station;
低扬程大流量泵站能量测试系统的开发与应用
5.
Theoretical Study on Dynamic Characteristics of Large Low-Head Pumping Stations during Suspending Period;
低扬程大型泵站停泵动态特性理论研究
6.
Influence of Pump Impeller Diameter on the Hydraulic Characteristics of Low Head Pump System
水泵叶轮直径对低扬程泵装置水力性能的影响
7.
Low-head Pump Performances and Determination of Reasonable Scope for Variable Speed Operation
低扬程泵变速工况性能及合理变速范围的确定
8.
Research on the bell inlet passage height of large low-head pumping station
大型低扬程泵站钟形进水流道高度研究
9.
Outlet divergent passages are adopted in large, low head pumping stations whose hydraulic losses are15%~20% of pump water head.
大型低扬程水泵采用渐扩出水流道,比水流道水力损失占泵扬程的15%20%右。
10.
Study on Numerical Simulation and Model Test for Low Lift Vertical Axial Flow Pump System;
低扬程立式轴流泵装置数值模拟与模型试验研究
11.
The Influence of Pump Impeller Diameter on the Hydraulic Performance of Low Lift Vertical Flow Pump System;
叶轮直径对低扬程立式轴流泵装置水力性能的影响
12.
Post-Evaluating Indexes and Field Test Methods of Performance of Large Low-Lift Pumps in the Eastern Route of the South-to-North Water Transfer Project
南水北调东线大型低扬程水泵性能后评估指标与现场测试方法
13.
Experimental study on pump discharge measurement for large-scale and low-lift pumping station by using ultrasonic flowmeter
超声波流量计测试大型低扬程泵站流量的模型试验
14.
Research on Interim Process in Condition of Water-pumping Power Failure under Low Head in Bailianhe Pumped-storage Power Station
白莲河抽水蓄能电站首台机组低扬程下水泵工况抽水断电水力过渡过程研究
15.
Screw pump drived by submersible motor is rodless oil pumping which can achieve high delivery lift and low delivery capacity. It can attain the purpose of low cost and high efficiency.
潜油电机驱动螺杆泵的无杆抽油可实现高扬程、低排量,能达到降低成本提高效率的目的。
16.
A loudspeaker designed to reproduce bass frequencies.
低频扬声器设计用来再现低音频率的扬声器
17.
The Maze helix pump is a kind of special pump which is small rate of flow, . high lift and low rotational speed. Its specification is safe and long durability.
迷宫螺旋泵是一种小流最、高扬程、低比转速的新型特种泵,其特点是使用安全可靠、寿命长。
18.
The loudspeaker boomed out his name
扬声器低沉地呼叫他的名字。