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翻译
  • heliograph

    • 英 [ˈhi:liəgrɑ:f]
    • 美 [ˈhiliəgræf]

    释义

    • n.
      照相制版,太阳摄影机,日光仪
  • 词态变化

    • 复数: heliographs;
  • 实用场景例句

    • 全部

    The heliograph must thus be carefully aligned in the first instance.

    回照器在开始时就要小心地对准.

    辞典例句

    收起实用场景例句
  • 英英释义

    Noun

    • 1. an apparatus for sending telegraphic messages by using a mirror to turn the sun's rays off and on

    Verb

    • 1. signal by means of a mirror and the using the sun's rays
    收起英英释义
  • 行业词典

    • 计算机

      日光反射信号器