| 单词 | heliograph |
| 释义 | heliograph n. & v. --n 1. a a signalling apparatus reflecting sunlight in flashes from a movable mirror. b a message sent by means of this; a heliogram. 2. an apparatus for photographing the sun. 3. an engraving obtained chemically by exposure to light. --vtr. send (a message) by heliograph. Derivatives heliography n. |
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英语词典包含43808条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。