다원환多元環이라고 부름


다원환이 뭘까?

https://pdf.sciencedirectassets.com/272585/1-s2.0-S0001870800X01855/1-s2.0-0001870872900023/main.pdf?X-Amz-Security-Token=IQoJb3JpZ2luX2VjECYaCXVzLWVhc3QtMSJHMEUCIQDE3%2BRjrEZ6FObxlqpaxMmSknYdkkBTexwB%2FOHKeHVwuQIgVFJBFedrbdKszXcmmp2ZkK%2Fvvqym6rGhCwgVf8LmlSUqvAUIzv%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FARAFGgwwNTkwMDM1NDY4NjUiDEu9AxCmTCV1SJrsYiqQBU5zdz17rbWgIOGrgCok%2FbJUFVSn07AkQTHBZkIQChYYqc8IOn3RdDU4e7NBaZELWXH1532EI7QbMZJsYQ%2BQBeaYjWDV5S%2B5DR7McUI3BLBBswK%2BSpga0Q1gpMTRhKPAyxuj2x1VlCkb7pegeVXfCmrzgqFGPsCWMkI%2FlIpUW4jPZYiUoz98wR77IBqxwR1eiQYOlLiEUz5Hh6ktJb3KtZXomWValZb51NZlOc3lumk1AKkq8fvWYaQH%2FEMq6dZrcLl9BAfvSLIDr2HCX%2FXP7SkiaPEx5tl6Ta6BMsNqBla6zQdkuzKJyS1kwr4tOqsAM9w0gHqW7louU7Dl6%2FCBrm1dXtXZmW%2FuZcjJ%2FcTm5hcyOjtdXtyvVTfT7JXS8q8MFyQahZMtkpK%2Ft6SSeq30lZFaEZcG1OmZMjC4dZO2DTG3UZEkAHJeX6lx0IpR4FViDf2NJ7EcSMpfrnlj1apAtMvVPGzv87aNeXrfHCLddYM9GnNZxFD0XiAagzpKccVhaegVY5nnI5T8jrBJCFtU6wlw1e%2FB20affbBHZVKtAOLSlf6rs5s%2BfCZ2iLEvePUwz7x7B0F7h1gcf5gvPDfYP2A4EIYaiBOHNDqTgouULzxVcgCZuiglxNNBCu63yGgf7kFawP43LR16B0Gf3TaoIAJ8tInAHV2HfvHrXlja9sm60qT2L3IAw8TdnZQTHYoQ4ZuuJloQcn%2Fh6b%2BRsotDPLJmc0yHzIQuoOeOkKGLwmuBeHYZxAFVvIsIihh4AI%2FuxxKsF1A7qLUrTbfMb1Gr6i9laIVLr9CEtvn8ZWiTyMmkTP2zO6Y21tyEnoo6YJmshQJINA4YDwggXOcADyNZzceivqstyod5gDKCbj%2FU19XIMMHj0ccGOrEBlT7nLTA9hbHjnIBPUricHDhKzQ%2BJHBkDcCN%2F7CDCj8x8FJjkH%2F38rMkkMMfORXDLg6lH40mPxTYr0DzBtxTeLbZblhYEcmoF7zl%2FrunEjmGTB6BeW1UAELkswsG6QQyakmp7O36nSaD1L1%2BK6XBh%2FoPFElDp9XsUCTM5UROTAZFz%2BXNe7hXhoS1%2Fw6x4fw52RZlV1kAUMCxjdZxDxGDB7P7Q6VuwmBkY1OtpAArlTWKd&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Date=20251019T054200Z&X-Amz-SignedHeaders=host&X-Amz-Expires=300&X-Amz-Credential=ASIAQ3PHCVTY64HN7QZK%2F20251019%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Signature=65a55413c55c21e50ecd533d42a74c2a47b8c46016ec8608143a77602ac96123&hash=4ddeeb750553e82d500fe716b5015b91e0a8306d783ae8f661af576b870ca6b2&host=68042c943591013ac2b2430a89b270f6af2c76d8dfd086a07176afe7c76c2c61&pii=0001870872900023&tid=spdf-e114a6cd-2626-4cce-9de8-165c77807b79&sid=7082d89b382100461a3806a07a014545bafdgxrqa&type=client&tsoh=d3d3LnNjaWVuY2VkaXJlY3QuY29t&rh=d3d3LnNjaWVuY2VkaXJlY3QuY29t&ua=11165c5a5f0a0954525b&rr=990df319fa50c9fd&cc=kr