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1)  zero head
零扬程
1.
Simulations of near-zero head flow in a large slanted axial pumping station;
大型斜轴伸泵站近零扬程流场仿真
2)  lift [英][lɪft]  [美][lɪft]
扬程
1.
By comparing two means of heightening feed pump lift range of reactor in a chemical plant shows that the method of deflection with short vane is an effective mean for heightening lift range and efficiency of the low specific speed centrifugal pump.
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。
2.
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.
通过分析得出旋喷泵在小流量和高扬程工况下运行时,效率高于多级泵和高速泵,在研究旋喷泵集流管与叶轮匹配及集流管扩散段损失的基础上,给出了设计扩散管水力参数的公式。
3.
From the determination of flow and delivery lift,layout and other aspects analyzed is made.
介绍了消防增压设施的种类,对增压设施流量及扬程的确定、位置的布置等方面进行了分析阐述,并对增压设施在消火栓系统和自喷灭火系统中能否合用的问题进行了探讨,以供增压设施设计时参考。
3)  head [英][hed]  [美][hɛd]
扬程
1.
Analysis of influencing factors on the head of screw centrifugal pump;
影响螺旋离心泵扬程的因素分析
2.
Pump head matching in distributed power system;
动力分散系统中水泵扬程的匹配
3.
Based on the working experience, with respect to general feature of pumps used in chemical factories, a set of methods to calculate the parameters, such as flow volume, head, net positive suction head and shutoff pressure, of pumps was summed up.
在整理以往工作经验的基础上,针对化工厂用泵的一般特点,总结出了一套计算泵的流量、扬程、净正吸入压头和憋压等设计参数的方法。
4)  Lift head
扬程
5)  pumping head
扬程
1.
This paper discusses such design problems in heating systems with the pres- sureless boiler as how the pumping head of the cycle pump is selected ,where the cycle pump is installed and whether the expansion tank is necessary.
针对无压锅炉供暖系统设计中有关循环水泵扬程的选择、循环水泵的设置高度及是否设置膨胀水箱等问题从理论和实践上进行了探讨,得出了可供设计人员实际应用的计算公式,介绍了几个关键问题的处理方法,澄清了一些模糊认识。
6)  Delivery lift
扬程
1.
In the research of the influences of geometrical parameters of centrifugal pump on the delivery lift,particular attention should be paid on the research of synthetic influence.
离心泵几何参数对扬程的影响,应当侧重于综合影响的研究。
2.
According to the construction project of heat supply pipe network with long pipe and complicated surface configuration situations the purpose of adding relay pump, location selection and flow calculation as well as delivery lift are introduced.
针对管路较长、地势复杂的供热管网施工,从管网加设中继泵的目的、中继泵位置的确定、中继泵流量扬程的选择计算等方面进行了介绍,指出中继泵的设置减少了管网整体投资,有效地改善了供热状况。
3.
The delivery lift of circulation pump in regional heating boiler plant is calculated.
对新建住宅小区供热锅炉房循环水泵扬程进行了计算。
补充资料:零息票债券;零券息债券
零息票债券;零券息债券一种以低于票面价值的价格发行的债务工具。债券不支付任何票息;它在到期日是以面值赎回的。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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