pressure head
英 [ˈpreʃə(r) hed]
美 [ˈpreʃər hed]
压力感受器；（水）压头；压（位）差；空速管
双语例句
- Design on pressure head and die mold of extruder for block with high hole density
高孔洞率砌块挤出机头及机口模具的设计 - To determine the type of pump, then in accordance with the flow and pump pressure head election.
确定泵的类型后，再依流量和压头选泵。 - Centrifugal pump characteristic curve on the efficiency of the highest point known as the design point, a pump at the point corresponding to pressure head and flow of work under the most economic.
离心泵特性曲线上的效率最高点称为设计点，泵在该点对应的压头和流量下工作最为经济。 - Now the pressure head of the pump is not able to make precise calculations in theory, the general use of experimental methods.
目前对泵的压头尚不能从理论上作出精确的计算，一般用实验方法测定。 - The actual flow reciprocating pump flow rate than theory, and with the increased pressure head decreases, which is due to leakage caused.
往复泵的实际流量比理论流量小，且随着压头的增高而减小，这是因为漏失所致。 - It is frequently referred to as "pressure head" when expressed in terms of energy per unit weight of water.
当以单位水重的能量来表达时，经常看作为压头。 - A silicone oil bubbler provides a positive gas pressure head inside the growth tube at all times.
硅酮油起泡器能始终在生长管内产生一正气压位差。 - If the transport of liquid viscosity and density difference between the larger and water, shall account for the pump parameters: flow, pressure head and shaft power.
若被输送液体的粘度和密度与水相差较大时，应核算泵的特性参数：流量、压头和轴功率。 - The grate will be, at intervals, performed according to the settled time or to the automatic control of pressure head between fore and after-grate.
格栅的运行可按设定的时间间隔运行，也可根据格栅前后水位差自动控制。 - The Dall flow tube is an empirical design with an extremely high pressure head recovery.
Dall流量管是具有特别高的压头补偿的实验装置。 - It is composed of open type engine body, hydraulic power cylinder, upper pressure head, and lower type box. The type box can be collocated with manual four-positions renewal.
有开式机身、液压动力缸、上压头、下字盒等组成。下字盒可配手动四位根据用户要求更换。 - The injection mould design of pressure head is introduced, and the points of design are also elaborated.
对押头注塑模设计的实例介绍，详细阐述了其中的设计要点。 - This machine is composed of Bed frame, Gear box, Pressure head, Tube rest, Tool holder, Subsidiary tank, Coolant tank, Chip conveyor as major components.
构成品由底座，齿轮箱，压力感受器，管支架，工具夹，储罐支架，冷却剂箱，排屑输送机等构成。 - The equation for total pressure head of pre-and post cutting blades was deduced by integration method when we know the performance parameters and the twisting law of original fan.
在已知原有风机的特性参数及扭曲规律的情况下，本文通过积分法推导出切割前后的风机全压间的关系式，从而可以根据所需的全压大小找到合适的切割量。 - The flow rate ( usually by the production task may be) and the calculation of the pipeline pressure head needed to determine the pump model ( from a sample or product catalog, select);
根据流量（一般由生产任务定）及计算管路中所需压头，确定泵的型号（从样本或产品目录中选取）； - The characteristics of centrifugal pumps are sent to liquid capacity, the flow evenly, but the resulting pressure head is not high, and the pressure head as the flow changes.
离心泵的特点是，送液能力大，流量均匀，但产生的压头不高，且压头随着流量的改变而变化。 - In this paper, the influence of orifice-induced pressure head on pit corroded piping is studied.
研究了节流孔板引起的压差对含腐蚀坑点的管道系统的影响。 - Reciprocating pump flow and the pressure head has nothing to do with the size of pump cylinder, piston and the reciprocating frequency of stroke.
往复泵的压头与泵的流量及泵的几何尺寸无关，而由泵的机械强度、原动机的功率等因素决定。 - Theoretical pressure head and performance curves of submersible electric centrifugal pump for gas-liquid mixture
电动潜油离心泵输送气液两相介质的理论压头和理论特性曲线 - The hydraulic analysis of pump for suction penetration of bucket foundation as well as the pressure head relation between bucket cavity and pump inlet for different water depths and different pump mounting heights are described in this paper.
对桶形基础平台负压沉贯过程中汲水泵机进行了初步水力分析，讨论了不同水深、不同泵机安装高度情况下，桶腔和泵机进口之间的压头关系。 - Air velocities, velocity pressure head and total pressure head were measured by electrical anemometer, Pitot tube and the inclined manometer respectively.
风速、动压、全压分别采用了热电风速仪、皮脱管和倾斜式微压计测量。 - Effect of Coal Grindability Indices in Fan Mills on Fineness of Pulverized Coal and Pressure Head
风扇磨煤机中煤的可磨性系数对煤粉细度和压头的影响 - Results demonstrated that the air-gap and pressure head have remarkable effect on back-flow;
人才流动的经济学分析试验结果表明气隙和压差对回流有明显影响：增大气隙或增大压差都会导致回流的增加。 - This paper also defines the reducing ratio to be r and the pressure ratio to be G, and according to the value of discusses the distribution of lateral pressure head on the uniform slope.
在此基础上，定义了降比r和压比G，根据r的大小，讨论了均匀坡毛管压力水头的分布； - It is suggested to apply the principle of effective gravity and equivalent pressure head to calculate the rotational speed and ingate area in the processing of grinding ball by centrifugal casting.
在离心铸球工艺中，可应用有效重度和等效压头原理计算转速和内浇口断面积。 - With the same slope and pressure head, the flow deviation ratio of drip holes increases with the length of hoses paved;
在同一坡度和压力水头下，滴孔的流量偏差率随铺设长度的增加而增大； - Study on pressure head characteristic of axial flow fan combined water jet dust-extraction fan
轴流通风机与水射流除尘风机联合工作压头特性研究 - Simulation results were presented for the flow rate versus frequency, pressure head and input power.
得到了微型泵的频率特性，流量-压头曲线及流量随功率的变化。 - In order to get a comprehensive analysis of the stress and strain situation of silicon nitride ceramics when under pressure head, and to analysis the impact of indentation process that caused by ultrasonic vibration, this paper did the simulation and indentation experiments analysis.
为了全面地分析氮化硅陶瓷在压头作用下的应力场变化情况，同时研究超声振动对压痕过程的影响，本文进行了压痕试验及仿真研究。 - In addition, a multipurpose pressure head to unify the sand mold hardness data is designed.
另外通过对砂型硬度计压头进行改造，设计了一款通用型压头，便于数据的统一。