As the temperature of a liquid is raised , its vapor pressure increases very rapidly 液体蒸汽压随着其温度的升高而十分迅速地增加。
It is practically immiscible with water , has a high boiling point and low vapour pressure 它特别不溶于水，沸点更高，蒸汽压更低。
On - line measurement system for gas flux in the pipeline based on vapour pressure equation 基于蒸汽压方程下的管道煤气流量在线计量系统
The use of temperature - programmable column ovens takes advantage of this dependence to achieve efficient separation of compounds differing widely in vapor pressure 利用程序升温方式，可以快速有效分离蒸汽压差异较大的组分。
The results show that in 185 saturated steam , pyrite tailing doesn ' t hydrate alone , but is converted into calcium silicate hydrate when mixed with lime 结果表明： 185饱和蒸汽压下，硫铁尾矿不具有水热水化的能力，硫铁尾矿与石灰可以形成具有胶凝性能的水化产物。
The saturated densities , vapour pressures , and latent heats of vaporization for hfc working substances of refrigeration are calculated by using a set of general equations of thermophysical property of liquids 摘要应用一套通用型流体热物性方程对hfc类致冷工质的饱和密度、蒸汽压和汽化潜热进行计算。
Once in the column , compounds in the test mixture are separated by virtue of differences in their capacity factors , which in turn depend upon vapor pressure and degree of interaction with the stationary phase 当样品进入色谱柱后，混合试样中各组分由于容量因子的差异会被彼此分离开，分离程度取决于各组分蒸汽压和组分与固定相之间的相互作用。
Presents the steady - state programming with constant coolant average temperature and constant live steam pressure , an ideal programming for marine nuclear power plant ( npp ) , under which , both the coolant average temperature and the live steam pressure of nuclear steam supply system ( nsss ) are constant when the steady state operating condition is varied , and points out that in comparison with the steadysate programming with constant coolant average temperature , the ideal programming can improve the overall operating performance of npp effectively , especially in low - load range , for instance , raise the heat efficiency of npp , decrease the operating noise of main coolant pump , and improve the conditions of design , operation and control of the secondary loop system 双恒定运行方案是船用压水堆核动力装置的理想运行方案.在这种运行方案下，当装置稳态功率变化时，冷却剂平均温度与蒸汽压都保持不变，与通常采用的冷却剂平均温度恒定运行方案相比，有效地改善了核动力装置的总体运行性能，特别是在低负荷运行时，可以提高装置经济性、降低主泵运行噪声、改善二回路系统的设计、运行和控制条件，这对于提高船用核动力装置的运行可靠性和安全性具有实际意义
Saturation vapour pressure of internal combustion engine under actual operation conditions is expressed as the multinomial by using least square method , which facilitates the calculation of rectifying coefficient of engine output and fuel consumption as well as the fabrication of computer programme for such calculations 摘要介绍了用最小二乘法拟合方法，将内燃机现场环境状况下饱和蒸汽压表示为多项式形式，为计算功率和燃油消耗率校正系数，并为此而编制计算机程序提供方便。
Soil - resistance finishing improved anti - dust property . the model of mass transfer and heat transfer study on principle of mass transfer and heat transfer is significant for process . according to heat transfer model and part operating conditions , temperature of membrane , vapor pressure difference of both sides and distillation coefficient can be calculated out 通过对使用pvdf复合膜的气隙膜蒸馏过程的传热分析，建立了传热模型，根据蒸馏通量及部分操作条件可以求得pvdf微孔膜两侧的温度，进一步得知作为膜蒸馏过程推动力的膜两侧蒸汽压差及重要参数膜蒸馏系数。
