Variable Speed: New variable speed pumps offer a noticeable improvement over accumulator tank systems.
可变速的水泵：新的可变速的泵在压力鼓系统上面也有改进。
Proposes methods such as by-pass with chiller, multi-grade pumps and variable speed pumps to optimize series ice storage systems.
对于串联系统，则提出采用制冷机旁通、多级泵和变频泵的方法使系统配置更加合理。
Though setting up the model to calibrating the level control parameter PID, the system dynamic performances is optimized in regulating the upper pool water level by variable speed pumps.
建立了整定水位PID调节器的控制模型，优化变速泵控制前池水位变化系统的动态品质。
First this paper research on using variable speed fluid couplings in speed regulation control system of dual pumps or fans machines running in parallel mode.
本文首先对调速型液力偶合器应用于泵或风机双机并联运行的调速控制系统进行研究。
Taking the pump station of West-South Oil Product pipeline as an example, dynamic programming theory is adopted to settle pump running problem of the whole pipeline with speed variable pumps.
以西南成品油管道泵站为例，运用动态规划的原理，解决配有调速泵的管道全线开泵方案问题。
The electro-hydraulic servo system directly controlled with speed variable pumps is a competitive and environmental beneficial driving principle.
介绍新提出的用变转速液压泵闭环控制的差动缸电液伺服系统。
Variable-speed control pump performance, more economical, a broader scope of application of all agricultural water pumps can be used.
变速调节水泵性能，比较经济，适用范围较广，对所有农用水泵均能采用。
Variable AC drive with independent digital R. P. M. readout for pumps offers precise control of AC motor speed, easily to set and maintain application speed tailored to line speed.
交流变频调马达，数码式泵转速(rpm)显示功能，便于精确控制马转速，易于设定和保持与生产线速同步转速！
Variable AC drive with independent digital R. P. M. readout for pumps offers precise control of AC motor speed, easily to set and maintain application speed tailored to line speed.
交流变频调马达，数码式泵转速(rpm)显示功能，便于精确控制马转速，易于设定和保持与生产线速同步转速！
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