Samuel Morse invented relay stations for telegraphic signals when observing relay stations for horses.

  • SamuelMorse通过观察马驿站为电报信号发明了中继站.

  • 互联网摘选 2025-01-20 11:44:03

    • 相关例句
    精确
    • 模糊
    • 词首
    • 词尾
    • 词义
    • 例句