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heliograph

XDict

n. 照相制版,太阳摄影机,日光仪
vt.
vi. 用太阳摄影机拍摄,用日光仪传递

PyDict

照相制版,太阳摄影机,日光仪用太阳摄影机拍摄,用日光仪传递

Taiwan MOE computer dictionary (moecomp)

heliograph
日光反射信号器

WordNet (r) 3.0 (2006) (WordNet)

heliograph
n 1: an apparatus for sending telegraphic messages by using a
mirror to turn the sun's rays off and on
v 1: signal by means of a mirror and the using the sun's rays

The Collaborative International Dictionary of English v.0.48 (gcide)

Heliograph \He"li*o*graph\ (h[=e]"l[i^]*[-o]*gr[.a]f), n.
[Helio- -graph.]
[1913 Webster]
1. A picture taken by heliography; a photograph.
[1913 Webster]

2. An instrument for taking photographs of the sun.
[1913 Webster]

3. An apparatus for telegraphing by means of the sun's rays.
See {Heliotrope}, 3.
[1913 Webster]

Heliograph \He"li*o*graph\ (h[=e]"l[i^]*[-o]*gr[.a]f), v. t.
1. To telegraph, or signal, with a heliograph.
[Webster 1913 Suppl.]

2. To photograph by sunlight.
[Webster 1913 Suppl.]

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英文字典中文字典相关资料:

Heliograph - Wikipedia
A heliograph (from Ancient Greek ἥλιος (hḗlios) ' sun ' and γράφειν (gráphein) ' to write ') is a solar telegraph [1] system that signals by flashes of sunlight (generally using Morse code from the 1840s) reflected by a mirror
Heliograph | signaling device | Britannica
…and engineer who invented the heliograph, a signaling device that employs two mirrors to gather sunlight and send it to a prearranged spot as a coded series of short and long flashes Read More
Heliographs: From Sun Signals to Early Telecommunications
In the vast realm of human communication, innovative methods have continually emerged to bridge distances and transmit messages across great expanses One such fascinating technique is the heliograph, a device that utilizes flashes of sunlight reflected by a mirror to convey coded communications
HELIOGRAPH DESCRIPTION: The heliograph was a communications . . .
DESCRIPTION: The heliograph was a communications device used to transmit messages over long distances It uses a mirror attached to a surveying device to direct a beam of light to a receiving station Sunlight is used as the light source Messages could be sent in any direction during daylight hours
The Heliograph. - Douglas Self
The Heliograph was a simple but highly effective instrument for instantaneous optical communication over 50 miles or more in the 19th century Its major uses were for military and survey work It was still in serious use at least up to 1935, for example by Glubb Pasha's Arab Legion in Palestine
HELIOGRAPH S. E. A. Singapore
We provide solutions within the graphics industry of engraving and flexography Singapore 577203 Heliograph (S E A ) Pte Ltd has been a subsidiary of the Heliograph Holding Group in Singapore It was previously known as Daetwyler Graphics Pte Ltd
Mirrors of War: The 158-Year History of the Heliograph
The heliograph's 158-year history spans from a mathematical surveying tool to a guerrilla warfare communication device This simple, reliable technology remains relevant across multiple technological revolutions

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