In chapter 3 , the existence problem of the large sets of disjoint pure directed triple systems ( lpdts ) is researched 第三章研究纯的directed三元系大集。
In chapter 6 , we discuss the existence problem of large sets and overlarge sets of three types of mixed triple systems 第六章研究三类混合三元系的大集和超大集。
In chapter 4 , we extend the results of the overlarge sets of three types of oriented triple systems and give some new recursive methods 第四章对三类有向三元系超大集作了进一步研究,推广了已有的结论,给出了一些新的递归方法。
The mechanism of solid - state displacement reaction has been studied , the solid - state displacement reaction path has been analyzed , the mechanical properties of composites has been tested Mo - si - c三元系稳定性化学势相图是定量分析mo _ 2c - si固态置换反应反应路径的重要手段。
Then based on the results in binary liquid alloys , thermodynamic properties of 6 ternary and 1 quaternary liquid alloys are predicted and compared . for most multi - component systems that are investigated , the predicted activities of al with wilson equation are in better agreement with the experimental results 在对二元系进行比较分析的基础上,又利用wilson方程和正规溶液模型对6个三元系和1个四元系的组元活度进行了预测和比较研究。