本文描述钴靶活度的水下测量方法。
Measurement method under the water for cobalt target activity is described.
并计算了活度系数和超额吉布斯自由能。
Activity coefficients and excess Gibbs free energies are calculated.
植物对金属的吸收主要取决于自由态离子活度。
Plant uptake of a metal depends primarily on the free metal ion activity.
在该式中各组元的活度系数可以表示为组成的函数。
In the expressions, activities and activity coefficients are functions of the composition.
组元活度的获得是合金热力学性质研究的一个重要方面。
Getting activity of component is an important aspect of researching the thermodynamic characters of alloy.
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.
并且提出一个考虑了过量熵的、用溶度参数表示的活度系数方程。
An equation for the activity coefficient expressed by solubility parameters and taking excess entropy into consideration is presented in the payer.
讨论了正规溶液模型中活度标准态的变换及标准生成自由能的转换。
Conversion of activity standard state and standard free energy change in regular solution model are also discussed here.
溶液中质子活度可以用水标准溶液标定的玻璃电极用电位法来测定。
In this media the proton activity can be measured by using a glass electrode with an aqueous pH scale.
通过试验，获得了实用转换系数，据此，可以求出每节钴靶的比活度。
Useful conversion coefficient is obtained by test, and therefore axial distribution of cobalt target specific activity is calculated.
通过对不同形态物质参考态涵义的揭示，进而加深对物质活度概念的理解。
The understanding of the concept of activity was strengthened after the revelation made on the meaning of reference states of substances in different states.
逸度-活度参数采用PSRV方程和MHVI混合规则拟合实验数据结果。
The parameter in fugacity-activity model is obtained by combining PSRV equation with MHVI to simulate the experiment result.
碳化物覆层成长速度主要受基体中的碳活度、处理温度和时间等因素控制。
Growth velocity of carbide coating is affected by factors such as the activity of carbon in matrix and treatment temperature.
如何合理地估算活度系数是水环境化学数值模拟工作中必须慎重考虑的问题。
How to estimate the activity coefficient of a chemical species is a problem which we must deal with carefully.
分子相互作用体积模型在二元固态合金中的活度拟合效果优于正规溶液模型。
So the fitting effect of MIVM is better than that of the regular solution model in binary solid alloys.
研究表明：当蔗糖使用量为6%、丙三醇的使用量为3%、水分活度达到0。
It was shown that at the addition of 6% sucrose, glycerol 3%, Aw below 0.
重点介绍了以界面反应为主、扩散为主的反应机理和活度控制的金属相变机理。
And the paper emphasized on the interface reaction mechanism, diffusion mechanism and metallic phase transformation mechanism which is controlled by activation.
给出了一种用室内快速运动的球体作为放射性样品测量室内氡射气辐射活度的新方法。
A new method of measuring indoor radioactivity of radon is presented by using the indoor fast-moving ball as the sample of a radioactive substance.
电子湿度计可以直接测量溶液上部密闭空间的相对湿度，而不能直接测量溶液的活度。
An electronic hygrometer can be used to directly measure the relative humidity over the solution placed in hermetic room without direct measurement of its activity.
指出了乳糖对改善鱿鱼丝风味、降低水分活度、延长产品保质期等方面有较好的作用。
The result shows that the lactose can improve the flavor, reduce the water active, and extend the produces shelf life of squid shreds.
在强碱性介质中，“固体表面活度”很低，若二硫代碳酸盐浓度不大，则不能发生吸附。
In serious alkaline media, "solid surface activity" values are quite low and the adsorption can't take place therefore.
原因是由氯化钠引起的离子强度的增大导致了药物活度的下降，进而致使稳态流量减小。
The decrement of the steady state flux was attached to the change of thermal activity of on and the existence of ion competition.
文章探讨了标准氡室氡体积活度的补氡模型和稳氡模型，以及确定相关参数的测定技术。
In this paper model of radon supplementation and model of radon stabilization of radon volume radioactivity are explored, and measurement technologies of correlation parameters are established.
目的：通过对医用活度计的检验，改善放射性核素活度的测量准确性，减少不必要的照射。
To improve the measurement accuracy of the radionuclide activity by verified the medical activity meter of user in order to reduce unnecessary exposure.
最后，用乙酰胆碱离子选择性微电极测定了束缚紧张状态模型大鼠红细胞内的乙酰胆碱活度。
Finally, using the microelectrode sensitive to ACh, the ACh activity in red cells of rat in nervous state was measured.
建立了CME的有限扩散理论模型，引入了活度系数比、扩散系数校正因子及动力学参数等。
The finite diffusion model of CME was established, the activity coefficient ratio, the diffusion coefficient correction factor and the kinetic parameter were introduced and evaluated.
水活度的演化特征表明，变质流体在变质作用过程中，对变质反应温度起着一定的缓冲作用。
The evolutionary feature of the water activity shows that the metamorphic fluids may have played a buffering role in the metamorphic reaction temperature during the metamorphic stages.
通过建立和求解一个地区饮水水溶液模型可获得标准致病水与非致病水的各种化学组份活度。
The activities of various chemical compositions of the standard pathogenic water and non - pathogenic water in a region can be estimated through establishing and solving the groundwater aqueous model.
通过建立和求解一个地区饮水水溶液模型可获得标准致病水与非致病水的各种化学组份活度。
The activities of various chemical compositions of the standard pathogenic water and non - pathogenic water in a region can be estimated through establishing and solving the groundwater aqueous model.
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