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https://hanzama.x0.to/2020/05/29/what-is-esim-esim-next-generation-sim-standard%e3%80%80esim-can-be-easily-understood-in-the-world-movareco/
次世代SIM規格「eSIM」(イーシム)って何だ?世界では動き始めているeSIMをわかりやすく解説(モバレコ)