Last Updated：2025/12/08
During the daytime survey, the sonar picked up a persistent echo from the deep scattering layer, which descended closer to the seafloor than we expected.
See correct answer
During the daytime survey, the sonar picked up a persistent echo from the deep scattering layer, which descended closer to the seafloor than we expected.
音声機能が動作しない場合はこちらをご確認ください
Edit Histories（0）
