| 单词 | photoheliograph |
| 释义 | photoheliograph —photoheliographic /foh'teuh hee'lee euh graf"ik/, adj. —photoheliography /foh'teuh hee'lee og"reuh fee/, n. /foh'teuh hee"lee euh graf', -grahf'/, n. Astron. an instrument for photographing the sun, consisting of a camera and a specially adapted telescope. Also called heliograph. [1860-65; PHOTO- + HELIOGRAPH] |
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