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helioscope

/'hi:liәskәup/

📖 中文释义

  1. n. 太阳目视(观测)镜,太阳观测望远镜
📘 English Definition（英文释义）
  1. n. A telescope or instrument for viewing the sun without
  2. injury to the eyes, as through colored glasses, or with mirrors which
  3. reflect but a small portion of light.
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