The density of the Na_3AlF_6- AlF_3-Al_2O_3-CaF_2-MgF_2-NaCl system was investigated with the Archimedean method based on quadratic orthogonal regression experiments.

• 用阿基米德实验方法；采用二次正交回归实验设计；研究了低温铝电解质Na3AlF6 AlF3 Al2O3 CaF2 MgF2 NaCl体系的密度.