helioscope.
/hee-lee-uh-skohp/US // ˈhi li əˌskoʊp //
日视镜,日光镜,日视仪,日光仪
Definitions
n.noun · 名词
- 1.
- ›a telescope for viewing the sun, adapted to protect the eye of the viewer from the sun's glare.
Examples
A few words must here be said concerning the helioscope, which on more than one occasion played a prominent part in this war.
To the "helioscope" employed by Father Scheiner two centuries and a quarter earlier, a species of micrometer was added.
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