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；
Its standard configuration includes a solar thermal system which is invisibly integrated into the zinc facade, as well as a geothermal system with a high-efficiency heat pump.
其标准配置包括一个太阳能集热系统，它不露痕迹地与锌表层融为一体，以及一个拥有高效热泵的地热系统。
Pump is the drainage and back into the groove of reasonable design, is a gear in the work under the minimum torque force, so the bearing load is small, wear small, pump with high efficiency.
输送皂角泵内有设计合理的泄油和回油槽，是齿轮在工作中承受的扭矩力最小，因此轴承负荷小，磨损小，泵效率高。
The signal power output of high conversion efficiency is depended on the optimum crystal lengths, pump intensity and signal power.
高转换效率的信号光输出取决于抽运光和初始信号光的强度及晶体长度的最佳优化值。
The AAT3177 is a high output current, high efficiency, low noise, low profile Charge Pump DC/DC converter.
AAT3177是高输出电流，高效率，低噪音，低姿态电荷泵DC/ DC转换器。
The reactor coolant pump canned motor of AC600 PWR is the kind of shielded motors with high moment of inertia, high reliability, high efficiency and nice starting performance.
AC600中的主泵电机应为高转动惯量、高可靠性、高效率和起动性能良好的屏蔽电动机。
The results, which obtained by using radial diffuser, show that due to the high loss through the diffuser, the efficiency of the liquid hydrogen pump is lower.
采用径向导叶的液氢泵的试验结果表明，导叶损失大，导致液氢泵效率低。
Using heat pump dry trepang compared to traditional law dry trepangtime-saving, the energy conservation, the efficiency is high.
利用热泵干燥海参比传统法干燥海参省时，节能，效率高。
The more the pressure difference value is , the less the energy-saving rate is and the less scope of high efficiency of variable pump is, and vice versa.
压差设定值越大，系统的节能率越小，循环水泵在高效区内的变频范围越小，反之亦然；
The pump has simple structure and is convenient in maintenance, which can drain without bottom valve and achieve the goal of high-efficiency and energy saving.
该泵结构简单、维护方便，可实现无底阀排水，达到高效节能的目的。
The lining is easy to form, high in production efficiency, no damage to volute, and high in wear resistance. The pump has replaceable front and back pump cover for lowering maintenance cost.
本发明较已有技术衬里简单，节省能源，生产效率高，而且不会损坏泵壳，耐磨性能好，前后泵盖可单独更换，可降低用户维修成本。
Pump is the drainage and back into the groove of reasonable design, is a gear in the work under the minimum torque force, so the bearing load is small, wear small, pump with high efficiency.
泵内有设计合理的泄油和回油槽，是齿轮在工作中承受的扭矩力最小，因此轴承负荷小，磨损小，泵效率高。
The structure of pump is simple; the efficiency is high, with certain exhaust quantity and with no motion, having the movement character which is more ideal.
泵结构简单，效率高，有确定的排量且无波动，具备较为理想运行特性。
In traditional charge pump circuits, the output voltage is limited with the threshold voltage, and has to use high stairs to realize. It leads to low power efficiency and large layout area.
在传统的电荷泵电路中，输出电压受阈值电压限制，不得不用高阶电路来实现，致使电路效率低下、面积大。
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.
通过对提高某化工装置反应器进料泵扬程两种方法的分析对比、实验研究，提出短叶片偏置设计法是提高低比转速离心泵扬程和效率的有效方法。
And first law efficiency of testing result also shows a maximum value for certain evaporating pressure. The reason is the gas-liquid two-phase at the expander inlet under high pump frequency.
循环第一定律效率随着蒸发压力的增加也存在最大值，其原因是由于较高压力和流量下膨胀机入口存在汽液两相现象。
Pump valve spring fracture is another common typical fault of emulsion pump with high pressure and large discharge which reduces the volumetric efficiency of emulsion pump greatly.
泵阀弹簧断裂是高压大流量乳化液泵的另一种常见典型故障，极大地影响了乳化液泵的容积效率。
The drying machine has simple structure and is easy to operate, adopts the solar energy as the main heat source and the heat pump as the auxiliary heat source to provide high drying efficiency.
结构简单、使用方便，晾晒效率高的以太阳能为主要热源，热泵为辅助热源。
KT-400 high vacuum oil diffusion pump, which is characterized by extreme high vacuum, pumping speed large, increase production efficiency while the vacuum pneumatic valves with automatic control.
KT- 400高真空油扩散泵，它的特点是真空极限高，抽速大，提高生产效率，同时真空气动阀门采用自动控制。
The utility model is capable of achieving high efficiency and low energy consumption heat generating co-operating with a heat pump assembly.
本实用新型结合热泵机组能实现高效率、低能耗制热。
Due to structure needed, Anti-impact stroke is one of the important factors that have great influence on the pump efficiency of high-gas-contained oil well.
由于结构需要，抽油泵的防冲距是高含气井中影响泵效的重要因素之一。
Adopt an advanced circle-arc tooth; the pump is of stable operation, low noise, long service life and high efficiency;
采用先进的圆弧齿型，泵运转平稳、噪音低、寿命长、效率高；
Adopt an advanced circle-arc tooth; the pump is of stable operation, low noise, long service life and high efficiency;
采用先进的圆弧齿型，泵运转平稳、噪音低、寿命长、效率高；
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