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2 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典

 he·lio·stat /ˈhiliəˌstæt/
 日光反射裝置

From: Webster's Revised Unabridged Dictionary (1913)

 He·li·o·stat n.  An instrument consisting of a mirror moved by clockwork, by which a sunbeam is made apparently stationary, by being steadily directed to one spot during the whole of its diurnal period; also, a geodetic heliotrope.
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