helioscope
/'hi:liәskәup/
📖 中文释义
- n. 太阳目视(观测)镜,太阳观测望远镜
📘 English Definition(英文释义)
- n. A telescope or instrument for viewing the sun without
- injury to the eyes, as through colored glasses, or with mirrors which
- reflect but a small portion of light.
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/'hi:liәskәup/