In the application of central air-conditioning, the technology of variable-frequency primary pump has been widely studied.
在中央空调的应用过程中，冷冻水一次泵变频技术得到了广泛的研究。
When applicable, pumps shall be designed to allow for the addition of parallel pump units to be coupled by the primary pump shaft.
如合适，应将泵设计成允许加入与主泵轴相连的平行泵单元。？
Analyses and confirms the practicability of variable water flow operation for the primary pump system, and illustrates its obvious energy saving effects.
分析了一级泵系统实现变流量运行的可行性，并通过实例说明了其显著的节能效果。
Reactor primary Pump is the important equipment in the primary circuit, its working quality would directly influence the safety and operation of nuclear power plant.
核电站反应堆主泵是一回路的关键设备，其设备状态的优劣将直接影响核电站的安全和运行。
The defects at the welding areas of blades of working impellers of primary pump connecting the cover plate have been found during pre-service inspection of Unit 1 at JNPC.
发现主泵工作叶轮的叶片端面与盖板连接处的焊接区域有缺陷。
Analyses the effects of variable flow operation of primary pump water systems based on the temperature difference control method on the operation of air conditioning systems.
分析了一级泵水系统采用温差控制法实现变流量运行对空调系统运行的影响。
Both the primary helium circulator for high-temperature gas-cooled reactor (HTR) and the primary pump for the pressurized-water reactor are the key components in the reactor primary loop.
高温气冷堆主氦风机与压水堆主泵一样，均为反应堆一回路的关键设备。
The stopping behavior of the primary pump has been studied in the experiments and the reactor plant, however, the study on the stopping behavior of the primary helium circulator for HTR is very lack.
目前，对压水堆主泵的惰转特性已有大量的实验研究和实际运行结果，但有关主氦风机惰转特性的实验研究与理论研究还很缺乏。
The primary application for the diode laser bar is as a pump light source for use in solid-state lasers for medical and industrial applications.
半导体激光器主要用做医用和工业用固体激光器的光源泵。
7 hr 30 min Even after operators pump water into the primary loop, pressure is still high.
7小时30分钟尽管操作员已将水抽入主回路，但温度仍然很高。
7 hr 30 min Even after operators pump water into the primary loop, pressure is still high. The PORV 'backup valve is opened to lower the pressure.
7小时30分钟尽管操作员已将水抽入主回路，但温度仍然很高。减压阀的备用阀门被打开，减少压力。
Fault diagnosis of main pump of the primary system of reactor which runs at normal condition is studied by the vibration, analysis technique.
应用振动监测技术，通过参数分析、信号分析及谱分析，对反应堆一循环在役主泵的故障进行了分析诊断。
To pump fluid through the whole active fluid system, including the borehole and all the surface tanks that constitute the primary system.
通过整个主动的流体体系泵送流体，这一系统包括井眼和所有构成主要循环系统的地面罐。
The design of self priming centrifugal pipeline pump is discussed, the primary hydraulics and structure design formulas and diagrams are offered.
论述了石油化工用自吸离心管道泵的设计方法，给出了主要的水力设计与结构设计的计算公式与图表。
The primary energy consumption and the energy cost of the heat pump dryer are compared with those of electrical heating dryer and steam-heating dryer and their economic evaluations are carried out.
本文还对热泵干燥、电加热干燥、蒸汽加热干燥的一次能源消耗和能源费用进行了比较和经济评价。
The efficiency is a primary evaluating indicator for oil transportation pump.
输油泵的主要评价指标是泵效率。
The impeller and volute is the primary hydrodynamic parts, which influence the no clogging of sewage pump.
叶轮和压水室是影响污水泵无堵塞性的主要水力部件。
The running inertia of the main coolant pump is the key problem of the primary phase.
主循环泵转动惯量的取值是停堆初期冷却阶段的关键问题。
Presents the air conditioning system and smoke exhaust system design of this project, applies the primary air fan coil system and secondary pump water system in the Top Electronics City.
简要介绍了鼎好电子商城空调系统和防排烟系统的设计，商城采用了风机盘管加新风空调系统和二次泵空调水系统。
The food drying plant of the hot pump for experiment was presented, and the primary measured result was given.
主要介绍用于实验的食品热泵干燥装置，并给出了初步测试结果。
Liquid enters the primary impeller through an inlet of the pump casing, foams mixed in the liquid are crushed and separated out under the action of the impeller.
液体通过泵壳体进口进入主叶轮，在叶片的作用下把混合在液里中的泡沫打碎并分离出来。
Based on the climate and energy price in Shanghai, gas engine driven heat pump can save about 23% primary energy and 11.3% running cost.
根据上海地区的气候条件和能源价格，燃气机热泵比电动热泵能节约至少23%的一次能源和11.3%的运行费用。
Primary analyses indicate that its annual energy consumption is less than that of the air-source heat pump units in Middle and South China.
初步分析表明在中南部地区其全年能耗低于空气源热泵机组。
The loss of efficient head of circulation pump in the primary loop of PWR will increase with the increase of resistance coefficient of JetPump under forced circulation.
强迫循环条件下，压水堆一回路主循环泵有效压头的损失随喷射泵阻力系数的增加而增加；
Stable coal transportation and kiln thermal condition is achieved by increasing primary air rate, improving inventory and modifying screw clearance of the screw pump.
通过采取提高一次风风量、控制合理库存、改造螺旋间隙等措施，达到了稳定煤粉输送量的目的，稳定了窑内热工制度。
The results also make it clear that heating coefficient and primary energy efficiency of whole heating system should be adopted to evaluate the energy utilization of each heat pump system.
还表明应以整个供热系统的供热系数和一次能源利用系数来衡量各热泵系统的能量利用性。
Also it supplies sealing water to the sealed part of the primary reactor coolant pump.
同时该泵还向核主泵提供密封水。
In addition, a lye-feeding device and a middle water tank are arranged between the water outlet of the primary reverse osmosis membrane and the water inlet of the secondary high-pressure pump.
另外还在一级反渗透膜处理水出口与二级高压泵进水口之间设置了加碱液装置和中间水箱。
This pump supplies make-up water to maintain the volume when the primary reactor coolant has contracted due to decrease of load.
该泵在主回路冷却水减少时，提供补充水以维持所需水量。
This pump removes the heat of the primary reactor coolant after the reactor is stopped and lowers its temperature.
该泵用于在反应堆停止时排除主回路的热量并降低其温度。
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