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.
2
实验表明,研究的新算法用于四面体单元的有限元模型,具有良好的切割处理效果。
Experiment results show that using this new algorithm for tetrahedron, finite element model can provide well visual result.
3
由此,把复数域上矩阵论的若干重要定理推广到了四元数体。
Accordingly, we extended several important theorems of complex matrix theory to the quaternion field.