英
['hiːliəɡrɑːf]
美
['hiːliəɡræf]
new
heliograph的英文翻譯是什麼意思,詞典釋義與在線翻譯:
英英釋義
Noun:
-
an apparatus for sending telegraphic messages by using a mirror to turn the sun's rays off and on
Verb:
-
signal by means of a mirror and the using the sun's rays
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