| 单词 | solar compass |
| 释义 | > as lemmassolar compass solar compass n. (a) a magnetic instrument turning under the influence of the sun's rays; (b) an instrument used in surveying for easy determination of the meridian. ΚΠ 1833 T. Brown White's Selborne 227 (note) Mr. Mark Watt has invented a very..interesting instrument, which he calls the heliastron, or solar compass. < as lemmas |
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