Some of the cross sections are used to stand for a certain component, and semiternary phase diagrams are ploted, then a quaternary phase diagram shown in a tetrahedron is obtained.
提出了利用正四面体的某些截面表示一定组成，得出相分离曲线和相分离曲面，并能较好地描述四元体系。
The research status of binary and multi-component phase diagram of magnesium alloys has been analyzed and several problems existing in alloying of magnesium alloys have been pointed out.
论文分析了镁基合金二元和多元相图的研究现状；指出了镁合金在合金化中存在的问题。
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