1) Quaternary system
四元体系
1.
Study on metastable phase equilibrium of quaternary system Li~+,K~+//CO_3~(2-),B_4O_7~(2-)-H_2O273K;
四元体系Li~+,K~+//CO_3~(2-),B_4O_7~(2-)-H_2O273K介稳相平衡研究
2.
The equilibrium solubilities and phase diagram of the quaternary system KVO3-NaVO3-CO(NH2)2-H2O at 298 K are studied by isothermal dissolution equilibrium method.
作者采用等温溶解平衡法研究了KVO3-NaVO3-CO(NH2)2-H2O四元体系298 K时的溶解度相关系,考察了钾、钠、脲素等共存离子或盐类同偏钒酸根离子的相互作用。
3.
The solubility of saturated solutions of quaternary system RbCl-CeCl3-HCl-H2O at 25 ℃ was determined and the corresponding equilibrium diagram was constructed.
测定了四元体系RbCl-CeCl3-HCl-H2O在25℃时的溶度数据,绘制了相应的溶度图。
2) ternary and quaternary systems
三元和四元体系
3) quaternary mutual system
四元交互体系
4) Quaternion association complex system
四元缔合物体系
5) quarternary salt water system
四元水盐体系
6) four unit dispersing agent system
四元复合分散体系
1.
The relationships of molecular weight distribution, grain morphology and processing rheology property of suspension PVC resins with different recipe of novel four unit dispersing agent system were studied by GPC, SEM, Instron capillary rheometer and HAAKE torque rheometer.
采用GPC、SEM、Instron毛细管流变仪和HAAKE转矩流变仪等研究了小试规模新型四元复合分散体系悬浮聚氯乙烯(PVC)树脂的相对分子质量分布、颗粒形态和加工流变性能之间的关系,并与通用的三元复合分散体系进行了对比。
补充资料：四元
1.指科举时代州县﹑府﹑省和廷试四级考试均名列第一。 2.数学名词。元朱世杰《四元玉鉴》以天﹑地﹑人﹑物代四个未知数。相当于现代代数的多元式。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条