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�EMinsaku, ""Optical space communication" for high-speed train communication, what is the laser scan method?" April 22, 2021
�EMinsaku, "Status of railway communication systems used in the world and Japan" April 22, 2021
�EAfrel, "[Keio University SDM] Learn parallel development in real and online. What is a new hands-on lesson created by a pinch?" March 31, 2021