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压头     
相关语句
  pressure head
     Influence of Additional Pressure Head of Gas Supply System in High rise Building
     高层建筑燃气供应系统中附加压头的影响
短句来源
     The recuperators have high air resistance , low air preheating temperature and high fan pressure head , and fan has much noise to environment and are apt to break down with vibration .
     此换热器空气阻力大,空气预热温度不高,风机压头高,环境噪声大,风机振动大、易损坏.
短句来源
     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
短句来源
     In addition, because of their high pressure head 55 kW motors are needed , causing more electricity consumption.
     同时,由于风机压头高,所配电机功率是55kW的,电耗高也是一个问题。
短句来源
     This article analyzes the traditional measures of releasing affixed pressure head and introduces the working principle of low and low gas pressure regulation and its application in hig buildings.
     分析了消除附加压头的传统措施,介绍了低低压燃气调压器的工作原理及其在高层建筑中的应用。
短句来源
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  indenter
     Method:Compression tests with electronic experimental instrument(Model CSS-2205) were performed with 49 standardized test sites in 55 bony endplates of intact adult cadaveric vertebrae(L1~S1) using a 1.5mm-diameter and plane indenter with a test rate of 12mm/min,datas were analyzed statistically.
     方法:选用成人新鲜尸体腰骶椎标本(L1~S1)5具,共30个椎体55个终板,应用电子万能实验机(型号CSS-2205)对终板平面49个测试点用直径1.5mm的平底压头以12mm/min的速度进行连续压缩加载实验,记录最大压缩力,并对数据进行统计分析。
短句来源
     The feature of acoustic emission in response to indentation fracture behavioursunder the action of Vickers diamond indenter for hot-pressed Si_3N_4 and reaction-bondedSi_3N_4 ceramics has been investigated.
     本文以热压 Si_3N_4和反应烧结 Si_3N_4为对象,研究其在 Vickers 钻石压头的作用下,相应于压痕断裂行为而发出的声发射特征。
短句来源
     The emphasis was put on the critical indentation depth with the influence of the yield strength ratio of the soft film to the harder substrate and the size of the indenter.
     重点研究了平压头压入过程中,不同屈服强度比(软薄膜屈服强度与硬基体屈服强度之比)以及不同压头尺寸下硬基体对压痕规律的影响.
短句来源
     The indenter diagonals were so positioned with respect to the crystal orientation that theinduced radial/median fracture of quartz Ⅰ and Ⅱ could propagate respectively along(10(?)
     压头对角线与晶体试样的相对取向是,使得水晶Ⅰ和水晶Ⅱ的压痕诱发径向/中位断裂,分别沿着(10(?)
短句来源
     The goodness of fit was studied for Vickers hardness of plasma sprayed Cr 3C 2-NiCr coating following normal, lognormal and Weibull distributions, then the effects of indenter load, testing direction and locations on Vickers hardness were investigated.
     研究了等离子喷涂Cr3C2 -NiCr涂层的Vickers硬度服从正态分布、对数正态分布和Weibull分布的拟合优度 ,在统计分析的基础上 ,考察了压头载荷和测量位置对涂层Vickers硬度的影响 .
短句来源
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  head
     The paper bases on performance and characteristics of pump/fan, analyzes the relationship between flow quantity, head, power and rotate speed.
     根据泵与风机在不同工况下运行的性能与特点,分析了变流量运行时,泵与风机流量、扬程(压头)、功率与转速间的关系。
短句来源
     The 010X2cupronickel tube of smooth surface is obtained with mould temperature of 1200 癈,cooling distance of 8mm,casting speed of 30mm/min and metal head of 30mm.
     φ10×2白铜管在压头30mm、铸型温度1200℃、冷却位置距铸型出口8mm、拉铸速度为30mm/min时,获得表面光洁的管坯,枝晶间距35~45μm。
短句来源
     The tests were performed in the four-point bending mode in air at the temperature of 1000℃,1200℃,1300℃ and 1400℃ respectively. The cross head speeds were chosen of 1,0.5,0.1 and 0.01 mm/min at each temperature.
     分别在1000℃、1200℃、1300℃、1400℃下,以1、0.5、0.1、0.01 mm/min的不同压头速率对试样进行四点弯曲试验。
短句来源
     Desigh of 63 Boring Rolling Head
     63镗 滚 压 头 的 设 计
短句来源
     The relationship between head's relative displacement and sheet's maximum deformation is deduced by parabola function forming model.
     通过建立抛物线函数变形模型,推导出两种典型零件成形中压头压入行程与板料最大变形量的函数关系。
短句来源
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  discharge head
     Based on Large Orifice Discharge theory,the criterion by which the liquid level in sprue and distribution sprue keep connected or not has been given, and the mathematical formulas which can be used to calculate the actual discharge head and cross section area of ingate have been put forward.
     观察了直浇道、分直浇道,内浇道系统中实际作用压头h的变化规律:根据大孔出流理论,提出了直浇道和分直浇道液面搭接与不搭接的判据及内浇口出流压头与截面积的计算公式。
短句来源

 

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  pressure head
The unsaturated hydraulic conductivities followed an exponential function of pressure head.
      
It is assumed that the drains are completely full of water; the pressure head in the soil along the line of contact with the drain is equal to the elevation of its upper point, at which there is no excess pressure.
      
The strict monotonicity of the relation between the flow rate and the pressure head difference in a region of the enlarged stream tube type and the possibility of an increase in flow rate with increase in flow resistance are demonstrated.
      
Under the action of the heat it is heated, melts, expands, becomes less viscous and under the pressure head created may flow relative to the stationary rock skeleton (first component).
      
The pressure distributions in the closure region of the cavity, the "flow-pressure head" characteristics, and the cavitation number (or pressure coefficient) as a function of the gas-injection rate are measured.
      
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  indenter
The method provides for a gradual decrease in applied stress as an indenter penetrates into a crystal.
      
Indenter-Penetration Viscometry of Glasses for Small-Sized Samples under Conditions of Continuous Heating
      
Conical-Indenter Penetration Viscometry on Thin Glass Plates
      
Rheological properties of aqueous solutions of carboxymethyl cellulose, polyvinyl alcohol, and of their blends prepared under various conditions (temperature, concentration, time) were studied by viscometry and of ball indenter penetration.
      
Combination of Methods of Impact Indenter and Acoustic Anisotropy for Assessing Fatigue Flaws in Metals
      
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  head
EGFR is over-expressed in numerous tumors including, those derived from the brain, lung, bladder, head and neck.
      
It is found that the head-on face (in contact with solution) of the films is green while the back face is white.
      
Optimal approximation of head-related transfer function's pole-zero model based on genetic algorithm
      
In the research on spatial hearing and virtual auditory space, it is important to effectively model the head-related transfer functions (HRTFs).
      
In the research on spatial hearing and realization of virtual auditory space, it is important to effectively model the head-related transfer functions (HRTFs) or head-related impulse responses (HRIRs).
      
更多          
  discharge head
An atlantic fluidics pump can carry up to a tenfoot discharge head provided the piping from that height is pitched toward a drain or other receptacle.
      
If suction head is a negative number it is added to the discharge head.
      
It is recommended for clean pumpage only and is typically limited to pumps with a Total Discharge Head of less than 125-ft.
      
In a centrifugal pump, the quantity of fluid pumped in each cycle is determined by the pump speed and the discharge head.
      
Lower discharge head until pump can move material without turning to freely causing overload.
      
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