"Salmon," notes writer Susan Ewing in The Great Alaska Nature Factbook, "pump through Alaska like blood through a heart, bringing rhythmic, circulating nourishment to land, animals and people".
作家苏珊·尤因在《伟大的阿拉斯加自然概况》中写道，“鲑鱼从阿拉斯加涌出，就如同血液从心脏流出，给土地、动物和人类带来了节奏，传递了营养。”
This paper states the method of selecting and using circulating pump in hot water heating system properly to save electric energy.
合理的选择和使用热水供暖系统循环水泵，以达到节约电能的目的。
There were some new problems such as the easy exhaustion of the liquid ammonia circulating pump and the appearance of liquid ammonia product was off specification.
目前存在氨液循环泵易抽空、液氨产品外观不合格(颜色发红)、液氨外送泵密封泄漏等问题。
Circulating water pump inlet pipe and outlet pipe should also install pressure gauge.
循环水泵的进水管和出水管上也应装压力表。
This paper introduces parameter selections of hot water circulating pump both at home and abroad.
对国内外热水循环泵的选取参数计算方法作了介绍和分析。
A remodeling design of circulating pump of 600 MW power unit is introduced which adopts different conversion factors for the impeller and guide blade according to the same model pump.
介绍了600MW火电机组用大型立式循环水泵的一种改型设计方法，即针对同一模型，叶轮与导叶体采用不同的换算系数进行设计。
Reliability design of V-belt drive get not only a small size? Light wight but also high reliability in the circulating pump.
讨论了泵中V带传动的可靠性设计与传统设计比较，不仅根数少、尺寸小、质量轻，而且可靠性高。
Frequent leakage of mechanical seal of quenching oil circulating pump was a hard problem in ethylene production.
急冷油循环泵的机械密封频繁泄漏是困扰乙烯生产的老难题。
Based on the motion function and characteristic in different modes of water system of air-conditioning, the differential of circulating water volume pump and elevation of pump were analyzed.
根据空调水系统在不同工况下运行的性能与特点，分析冬夏及部分负荷运行时，空调水系统的流量和扬程差异。
The design and lectotype of circulating pump, automatic return water switch valve, expansion tank and atmospheric connection pipe in atmospheric hot water heating boiler room are discussed.
对常压热水供热锅炉房的循环泵、回水自动启闭阀、膨胀水箱、大气连通管的设计选型进行了探讨。
The problem of cavitation of water pump impeller was solved by means of localized treatment of the sealing ring of circulating pump.
通过采用新技术，对循环水泵密封环进行局部加工，解决了水泵叶轮汽蚀问题；
The serious damage accidents induced by the out shell and ceramic bearing fracture of circulating pump in 660 MW thermal power plant have lead to great losses.
某超超临界660MW机组发生循环水泵外筒体断裂脱落、陶瓷轴承损坏的事故，造成重大损失。
This paper analyzes working state and energy consuming of circulating pump in heating network, states two technical parameters should be considered to set optimal circulating pump.
本文通过对热网循环泵工作状态和能耗的分析，指出优化设置热网循环泵应考虑的两项重要技术参数。
A diagonal flow pump with adjustable blades is used as the circulating pump in a 500mw power unit.
捷制500MW机组的循环水泵，采用了叶片可调整式斜流泵。
A fluid dynamical model of the materials in a loop reactor for polypropylene production is suggested and the power of the circulating pump of the reactor is calculated by means of Newitt correlation.
从探讨丙烯聚合工艺中环管反应器流体动力学模型着手，介绍环管反应器循环泵功率的计算方法。
In the hot water system a high water tank with solenoid valve controlled water feeder is used to replace the secondary circulating pump.
热水系统中，采用电磁阀根据水箱液位进行补水，省去二次循环泵。
All the circulating water heater, heat radiator, circulating pump and water replenishing system are contained together via pipeline.
循环水加热器和散热器及循环泵装置、补水系统通过循环管配管。
The controls should ideally be wired together, to prevent the chiller from cooling until the circulating pump is operating.
控制理想状态下应该是连接在一起，以防止循环泵正在运行时冷冻机进行制冷。
The lower end of the vacuum filter is communicated with a circulating pump through a pipeline which is provided with a tapping valve.
真空过滤器的下端通过设有排液阀的管道与一循环泵连接。
The circulating pump unit can measure the return water temperature and determine whether to start the circulating pump.
循环泵装置可测量回收到的循环水温度，而且根据测量的温度决定是否启动循环泵。
The causes of the circulating water pump impeller cavitations are analyzed, and good results are achieved through the use of wear putty to repair the impeller.
分析了循环水泵叶轮汽蚀的原因，通过采用耐磨修补剂对叶轮修补的方法，取得了良好的效果。
The utility model discloses a distilled water cooling system which can provide cooling water for a sodium circulating pump of a sodium cooled fast reactor.
本实用新型公开了一种给钠冷快堆的钠循环泵提供冷却水的蒸馏水冷却系 统。
The basic principle of distributed circulating pump heat-supply system is introduced.
介绍了分布式循环泵供热系统的基本原理。
Through the analysis and comparison of water pressure chart of press boiler and no-press boiler, it is found that their main difference is circulating pump delivery, namely different consumption.
通过对无压锅炉与有压锅炉供热系统水压图的分析和比较，发现二者的主要区别在于循环水泵的扬程不同，即循环能耗不同。
The ventilator for the water cooler and the circulating pump is driven hydraulically via a hydraulic motor.
水冷却器的通风设备及循环水泵由液压发动机控制。
The system has simple and practical design and can provide the distilled water in line with requirement for the sodium circulating pump.
该系统设计简便、实用，能为钠循环泵提供符合要求的蒸馏水。
The applied plan is introduced of frequency control system by the microcomputer for constant -pressure water supply to circulating pump stations, and the system is analysed.
介绍了微机控制变频恒压供水系统在循环泵站中的应用方案，并对系统进行了分析。
The applied plan is introduced of frequency control system by the microcomputer for constant -pressure water supply to circulating pump stations, and the system is analysed.
介绍了微机控制变频恒压供水系统在循环泵站中的应用方案，并对系统进行了分析。
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