I. helio·graph [ˌhi:liə(ʊ)ˈgrɑ:f, 美 -oʊˈgræf] 名词
- heliograph
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II. helio·graph [ˌhi:liə(ʊ)ˈgrɑ:f, 美 -oʊˈgræf] 动词 trans
- to heliograph sth message
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| I | heliograph |
|---|---|
| you | heliograph |
| he/she/it | heliographs |
| we | heliograph |
| you | heliograph |
| they | heliograph |
| I | heliographed |
|---|---|
| you | heliographed |
| he/she/it | heliographed |
| we | heliographed |
| you | heliographed |
| they | heliographed |
| I | have | heliographed |
|---|---|---|
| you | have | heliographed |
| he/she/it | has | heliographed |
| we | have | heliographed |
| you | have | heliographed |
| they | have | heliographed |
| I | had | heliographed |
|---|---|---|
| you | had | heliographed |
| he/she/it | had | heliographed |
| we | had | heliographed |
| you | had | heliographed |
| they | had | heliographed |
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单语范例（未经PONS编辑处理）
Although the original heliograph was designed for geodetic survey, it was used extensively for military purposes during the late 19th and early 20th century.
en.wikipedia.org After they had drifted for four days they sighted a submarine and used the reflective surface of a tobacco tin as a heliograph to attract her attention.
en.wikipedia.org It has also been called a heliograph.
en.wikipedia.org Then, for what seemed like at least a second, the green flash flooded the desert like an alien heliograph.
en.wikipedia.org During daylight hours when the sun is visible, a heliograph mirror can be used to flash bright, intense sunlight.
en.wikipedia.org