net head
英 [net hed]
美 [net hed]
净水头；净扬程；有效水头；有效扬程（落差）
双语例句
- The net income per head rose by about 16 percent in the past three years.
在过去的三年中每人的净收入增长了大约16%。 - This way both the net and her racket head protect her.
这样，球网和球拍给她双重的保护。 - By using this method presented in this paper, not only the optimum design of main pipe net was given, but the water head and flow and pump type were decided.
所提出的方法，不仅能得出一个优化的干管管网，而且还能确定出所需水泵扬程及流量，并确定水泵型号。 - The production line adopts high efficiency extruder, swift net changer and screw plastic blowing head. Research on CAD System of the Co-Extrusion Pipe Extrusion Die
生产线采用高效挤出机，快速换网，螺旋吹塑机头。塑料复合管材共挤机头计算机辅助设计系统研究 - The power generated by moving water is a product of Net Head and Flow Volume ( through the water wheel or device).
由流动的水所产生的电力是产品净头和流量（通过水轮或设备）。 - "Talk of a substantial slowdown in credit growth in China is premature, but understandable given the visible drop in official figures on net new loans," said Charlene Chu, head of financial institution ratings at Fitch in China, in December.
“现在说中国信贷增长大幅放缓还为时过早，但鉴于官方净新增贷款数据显著下降，这是可以理解的，”惠誉（fitch）中国金融机构评级主管朱夏莲（charlenechu）去年12月曾表示。 - An ornamental net bag that confines a woman's hair; pins or ties at the back of the head.
约束妇女的头发的装饰性的网袋；插或系在头的后部。 - The biggest was a switch in the EU budget, which within a few years in the mid-1990s turned the Netherlands from a substantial net beneficiary into the biggest net contributor per head.
最大的一个变化莫过于欧盟预算政策的变革。在上世纪九十年代中期几年的工夫，这一变革就使得荷兰从欧盟预算的一大净收益者变成了按人头算最大的贡献者。 - Discussion on the Construction Methods of Replacing Existing Lines 'Contact Net Head Span Suspension
更换既有线接触网软横跨施工方法探讨 - Car fans net presents souvenirs to the school, takes pictures with the head and Secretary of country.
车迷网赠送给箐脚小学的纪念品，与校长、村书记合影。 - The report says that the rate of growth of high net worth individuals has outpaced growth in both gross domestic product, and GDP per head, which it believes indicates that the rich are getting richer relative to their respective countries.
报告称，高净值个人的增长速度已经超过了GDP和人均GDP的增长。报告认为，这说明相对于他们的国家，这些富人正变得越来越富有。 - Net Head is derived from Total Head minus Head Losses.
净头是来自总目负水头损失。 - This paper provides an analysis of the causes for cavitation in water pump, and the interrelationships between cavitation and installation level as well as the relations between installation level and vacuum degree and net positive suction head using energy equation.
分析了离心式水泵发生汽蚀的原因，指出了它与安装高度的内在联系，并运用能量方程说明安装高度与真空度及汽蚀余量的相互关系。 - 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。 - Net 2003 as development tool, with the net intelligent client terminal for head, the Web Service for the data middle layer, the SQL Server 2000 for tail database, we designed a key project management system of Guilin.
net智能客户端为前端，WEBService为数据中间层，SqlServer2000为后端数据库设计桂林市重点项目管理系统。 - This conclusion can offered a basis for studying destroy jointly of cavitation damage and silt wear and for selecting units 'net suck head correctly.
为研究空蚀与泥沙磨损联合破坏和正确选择机组安装高程，提供了重要的依据。 - In addition, this paper provides the calculating method of the maxium dynamic NPSH ( Net Positive Suction Head) for the suction of feed pump.
在此基础上，进一步提供了更为正确的给水泵最大动态汽蚀余量△h（max）的计算方法。 - Influence of variations in water turbine maximum net head on transformation design
水轮机最大净水头改变对改造设计的影响 - This paper calculates the maximum net head, analyzes its influence on transformation design and describes the design standard.
为此，对最大净水头进行了计算，并分析了最大净水头对改造设计的影响，以及设计应达到的标准。 - For the low head hydro power station, the diameter of turbine will be relatively large, and the rated speed will be very low as well if the rated net head is lower than 10m.
在低水头电站中，设计水头在10m以下时，水轮机的转轮直径相对较大，而机组的转速相对很低。NET开发平台环境下进行开发。 - The outlet pressure fluctuating characters were determined by the root mean error. The relationship between the net positive suction head and the pressure pulsation of the pump outlet was set up by the experimental data and then compared with the traditional methods.
采用压力的均方差来描述泵出口压力波动特性，分析实验数据中泵装置汽蚀余量和泵出口压力波动之间的关系，并与应用传统方法得到的汽蚀特性进行比较分析。 - NET of technology, wade used of dedicated network within the railway computer to implement group company, head office, every station a piece of training management the online dynamic management.
NET技术的铁路培训管理系统，利用铁路计算机内部专用网络实现集团公司、总公司及各站段培训管理的在线式动态管理。 - When the leaf was properly matured, the protoplasm of mesophyll cells distributed even in net, and the head of glandular hairs expanded with dizzy cycles of secretion on its surface during the peak period of secretion.
适熟叶叶肉细胞原生质成丝网状均匀分布，腺头膨大，表面有分泌物晕圈，为分泌的高峰期。 - When there exists low-energy cluster in the net, the mobile sensor moves to the best cluster head position and selects itself cluster head to prolong the survival time. Moreover, we propose a method based on broadcasting data compression.
在网络出现能量过低的丛集时，移动节点移动至丛集最优簇首位置，选举自身担任簇首，延长网络的生存周期。另外，提出一种基于广播的数据压缩方法。