| 释义 |
heliograph/ˈhi:liə(ʊ)ɡrɑ:f/ n. & v.●n. 1a a signalling apparatus reflecting sunlight in flashes from a movable mirror 日光反射信号器 b a message sent by means of this; a heliogram 日光电报信息 2 an apparatus for photographing the sun 太阳照相仪 3 an engraving obtained chemically by exposure to light 日光胶版 ●v. tr. send (a message) by heliograph 用日光反射信号器发射(信息) □ heliography /-ˈɒɡrəfi/ n. |