Helioscope

[hi:liәskәup]

解释:

(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.

录入:露西

解释:

n. a telescope for viewing the sun without injury to the eyes by means of blackened glass or mirrors that reflect only a part of the light.—adj. Helioscop′ic.

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