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pressure accuracy
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     A minimum resolution of 20kPa and 0.5με was obtained on the measuring scales :0~14MPa and 100~300με. A pressure accuracy of 0.1% under 100℃ disturbance and a temperature accuracy of ±0.01℃ under 0~100℃ measurement were achieved.
     实验表明,0~14MPa和100~300μ∈压力和应变测量范围内最小分辨率达到20kPa和0.5μ∈,100℃温度范围内压力的测量精度达到0.1%,温度传感器在0~100℃测量下,精度达到±0.01℃。
     Displacement accuracy:±0.05 %; axial pressure accuracy:± 0.1%.
     测试精度:位移为±0.05%,轴向压力为±0.1%。
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     A minimum resolution of 20kPa and 0.5με was obtained on the measuring scales:0~14MPa and 100~300με. A pressure accuracy of 0.1% under 100℃ disturbance and a temperature accuracy of ±0.01℃ under 0~100℃ measurement were achieved.
     实验表明,0~14MPa和100~300με压力和应变测量范围内最小分辨率达到20kPa和0.5με,100℃温度范围内压力的测量精度达到0.1%,温度传感器在0~100℃测量下,精度达到±0.01℃。
短句来源
     Further analyses show that,at acertain angle of attack, computed pressure accuracy for low pressure region over afterbodygreatly affects the vehicle's moment coefficient and the center of pressure.
     通过分析表明,在一定的攻角下,倒锥体上低压区压力的计算精度,对力矩系数及压心位置仍有明显的影响。
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     The experimental results show that a pressure accuracy of 0.1% for temperature variation of 90℃ with a temperature detection accuracy of ±1 ℃. The sensor can meet the performance demands for oil tank measurements.
     文中给出了实验装置 ,实验结果与理论相符。 结果显示 :在 90℃温度范围内压力的精度可达 0 .1 %,温度的精度为± 1℃ ,已能满足石油计量的要求
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     the accuracy?
     地面控制点 (GCPs)的精度、分布和数量是决定提取DEM数据精度的关键 ;
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     pressure;
     压力;
短句来源
     Estimating Accuracy in Manufacturing of Pressure Vessel
     600MW反应堆压力容器精度检测
短句来源
     IMPROVEMENT OF MEASURING ACCURACY FOR SCANIVALVE OF PRESSURE
     提高机械式压力扫描阀测量精度的研究
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     water pressure;
     (3)在振荡腔内的和水楔作用;
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  pressure accuracy
The clear representation of all the cloud top pressure accuracy influencing parameters together is quite difficult.
      
Aspects like impact pressure accuracy, pressure pulse durations and mesh size are discussed in the paper.
      


This paper derives setting-pressure accuracy formulas of pilot-operated relief valves with different pilot adjustments, carefully analyzes the parameters effecting setting-pressure accuracy, and then provides effective measures to improve static performance of the relief valve.

本文从理论上推导得出了在几种不同先导阀结构调节下的导控式溢流阀的定压精度公式,从中对影响溢流阀定压精度的参数进行了仔细分析,为提高溢流阀静态性能提供了一些有效的措施。

The knowledge of complex three-dimehsional hypersonic visous flow over re-entry bodies is of great importance in the preliminary design of atmospheric re-entry vehicles.The thin-layer Navier-Stokes equations are solved with Harte-Yee's second-order TVD fiuitedifference scheme for three-dimensional hypersonic flowfields over a re-entry vehicle, whereM_∞ =7.35,Re_∞=7.5×10 ̄5,α=10°,20°。The detailed flowfield structures are given.The pressure distributions along body surface at various angles of attack are compared...

The knowledge of complex three-dimehsional hypersonic visous flow over re-entry bodies is of great importance in the preliminary design of atmospheric re-entry vehicles.The thin-layer Navier-Stokes equations are solved with Harte-Yee's second-order TVD fiuitedifference scheme for three-dimensional hypersonic flowfields over a re-entry vehicle, whereM_∞ =7.35,Re_∞=7.5×10 ̄5,α=10°,20°。The detailed flowfield structures are given.The pressure distributions along body surface at various angles of attack are compared withexperimental data and good argeements are obtained. Further analyses show that,at acertain angle of attack, computed pressure accuracy for low pressure region over afterbodygreatly affects the vehicle's moment coefficient and the center of pressure.

为使返回舱安全、稳定、可靠地飞行,准确地计算其周围的复杂绕流流场,对飞船的初步设计是十分必要的。用Harten-Yee的二阶迎风TVD有限差分格式求解薄层N-S方程,模拟了返回舱三维高超声速流场,M_∞=7.35,Re_∞=7.5×10 ̄5,α=10°、20°。给出了详细的绕流结构,不同攻角、不同子午面上的物面压力分布与Moseley和wells的实验数据进行了比较,符合较好。通过分析表明,在一定的攻角下,倒锥体上低压区压力的计算精度,对力矩系数及压心位置仍有明显的影响。

This paper introduces a new politedrelief valve with high performance.The advancedstructure and control method. of the polited relief valve not only make the valve fast responseand high sensitivity, but also greatly increase theconstant-pressure accuracy due to completely compensating fluid force of main valve and additionalforce of the spring in all working points, andthus conquer existing problems of traditionalrelief valve and markedly imptove the static anddynamic performance of the valve.

本文介绍的高性能新型先导溢流问,采用科学的导阀结构和控制方式,不但使阀的响应快、灵敏度高,而且使主阀的液动力和弹簧附加作用力在所有工作点均能得到完全补偿。克服了传统型溢流阀存在的问题,使阀的静动态性能均有显著提高。

 
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