URL：https://www.researchgate.net/profile/Magued-Iskander/publication/346703066/figure/fig6/AS:1004176519749636@1616425747460/Penetration-data-from-Fig-1-replotted-to-Vx-space-and-fit-with-complete-Poncelet.png
掲載元：https://www.researchgate.net/figure/Penetration-data-from-Fig-1-replotted-to-Vx-space-and-fit-with-complete-Poncelet_fig6_346703066
