设计和计算时需考虑蒸汽密度的变化。
The variation of steam density due to large pressure drop should be taken into account.
主要讨论了过热蒸汽密度的温压补偿方法。
This paper introduces the compensation method of temperature and pressure for overheat steam density.
“过饱和比”是超过饱和值的蒸汽密度与饱和值的比。
The "supersaturation ratio" is the ratio of the excess vapor density to the saturation value.
“过饱和比”是超过饱和值的蒸汽密度与饱和值的比。
The 'supersaturation ratio "is the ratio of the excess vapor density to the saturation value."
本文重点讨论了在压力变化较大的情况下蒸汽密度补偿的模型。
This paper emphasized on the vapor density compensating model in the circumstance of vapor's pressure varies in a large scale.
本文重点论述了变工况条件下饱和蒸汽密度补偿数学模型的建立。
This paper lays special emphasis upon the density compensator model for saturated vapor alterable work condition.
在临界温度以上和高压下，蒸汽密度可能变得象在低温下液体那样稠密且不可压缩。
Above the critical temperature and under high pressure the vapor may become as dens and as incompressible as the liquid at lower temperature.
考虑了混凝土多相系统中固体速度、饱和度乘蒸汽密度的空间梯度和孔隙压力空间梯度；
The model includes solid velocity, space grade of saturation with vapour density and space grade of porous pressure in concrete multiphase system.
引入了一种基于比率法的铂电阻高精度测温方法，简化了接口电路，从而提高了热蒸汽密度和流量计量精度。
Introduced a ratio method to measure the heat stream temperature with platinum resistor, the interface circuit is simplified and the precision for the flow measurement improved largely.
现有的密度补偿模型不适合高温高压饱和蒸汽的流量测量，密度补偿精度较低，导致蒸汽流量测量误差较大。
The existing density compensator model does not fit high temperature and pressure saturated vapor, the density compensator precision is low and causes big error in saturated vapor measurement.
参数由拟合蒸汽压、密度和离子平均活度系数数据获得。
Parameters are fitted to vapor pressure, density and mean ionic activity coefficient data.
采用温度补偿算法将蒸汽的密度变化引起的质量流量的变化进行修正。
The change in mass flux resulting from the steam density change is corrected by the temperature offset algorithm.
同时测定了以上五种物质在高温范围内的饱和蒸汽压和饱和液体密度。
The vapor pressure and saturate liquid density of the five compounds were determined in high temperature.
倒置桶疏水阀的开启和关闭是根据凝结水和蒸汽的密度差来动作的，凝结水可直接驱动疏水阀启闭，其动作准确，可靠性高。
Open and shut-down is operated by the density variation bet ween condensation water and steam, Condesation water can drive valve directly, featuring precision and reliability.
纯物质的参数由拟合纯物质的蒸汽压，饱和液相密度或超临界的PVT数据获得。
Pure component parameters were obtained by fitting vapor pressure, saturation liquid density and supercritical PVT data.
“识别”蒸汽和凝结水基于三个原理：密度差、温度差和相变。
"Identification" and the condensed steam water based on three principles: the poor density, and temperature difference of change.
给出了一个用于低压饱和蒸汽质量流量测量的变系数密度补偿式和该补偿式的特色。
It also gives out a variable coefficient density compensation formula used for measurement of mass flow of the low pressure saturated steam, and the features of this formula.
同时测定了上述流体在高温下的蒸汽压和饱和汽液相密度。
Vapor pressures, saturated vapor and liquid densities for above fluids were measured at high temperatures.
实例计算结果表明，存在最佳的蒸汽流速，其随压力升高、密度增大而减小。
The practical calculation results show, there is an optimal steam velocity, which is decreasing along with pressure-and density-increasing.
倒吊桶式蒸汽疏水阀的开启和关闭是根据凝结水和蒸汽的密度差来动作的，其动作准确，可靠。
Inverted bucket steam trap opening and closing action is based on the difference in density of the condensate and steam to its accurate and reliable.
文中对测量蒸汽凝集流量和测量液体密度方面的应用作了简要介绍。
Experimental results are given. Its applications in the measurement of condensed steam flow and the liquid density are also presented.
提出一种采用二次抛物线来拟合温度—密度曲线进行饱和蒸汽的流量补偿的方法，并且用MCS-51单片机进行数据处理。
This paper presents a method of flux compensation of saturated vapor. This method adopts parabola fitting the curve of temperature-density and deals with the data by MCS-51 single-chip computer.
利用最小二乘法，建立过热蒸汽的密度与温度、压力之间的函数关系，实现过热蒸汽的空间曲面补偿法，力求测量误差达到最小。
Use method of the least squares to build function relation between temperature and pressure, the space camber compensation method is realized and makes THD measuring error least.
应用统计热力学巨正则系综的密度涨落理论，提出了确定均质沸腾中液体极限过热度和均质凝结中蒸汽极限过冷度的方法。
The liquid superheat limit and vapor subcooling limit in homogeneous nucleation are determined in the present paper by using density fluctuation theory of statistical thermodynamics.
利用所建模型，分析了不同激光功率密度和背景气压对烧蚀和蒸汽膨胀的影响。
The model has been used to investigate the influence of different laser irradiance and ambient gas pressure on the laser ablation and the expansion of plume.
利用所建模型，分析了不同激光功率密度和背景气压对烧蚀和蒸汽膨胀的影响。
The model has been used to investigate the influence of different laser irradiance and ambient gas pressure on the laser ablation and the expansion of plume.
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