URL:https://d3i71xaburhd42.cloudfront.net/54ec03c0f00550fb1a2071bf4553230ed5d9bc35/11-Figure14-1.png
掲載元:https://www.semanticscholar.org/paper/Application-of-double-cylindrical-tube-having-twist-Aso-Tanaka/e8bcecf8b93ce700b112e0aac94768f16f7ebd35/figure/0