heliograph 的 2 个定义
- a device for signaling by means of a movable mirror that reflects beams of light, especially sunlight, to a distance.
- Astronomy. photoheliograph.
- Meteorology. an instrument for recording the duration and intensity of sunshine.
- Photography, Printing. an early type of photoengraving made on a metal plate coated with sensitized asphalt.
- to communicate by heliograph.
heliograph 近义词
等同于 beacon
更多heliograph例句
- We bivouacked at Granaatz Plaatz farm that night, whence the heliograph winked the news of our engagement to our camp.
- Instantly, the ship shone like the polished mirror of a heliograph.
- The Hussars left behind a Colt-Maxim and a heliograph for our usage.
- Very often these heliograph stations are located on mountain tops in the midst of extremely inaccessible country.
- Of course it is all prearranged who should be notified in case a fire is reported to the heliograph man.