semaphore system造句

例句与造句

1. It looks at the e-Borders Semaphore system for suspects.
2. A second semaphore system was built at Point Lobos in 1853, which communicated with Telegraph Hill.
3. The Japanese merchant marine and armed services have adapted the flag semaphore system to the Japanese language.
4. They did not want, and did not need, a semaphore system to keep them on track.
5. The first signalling system on the Norwegian railway system was a mechanically operated semaphore system introduced at Drammen station in 1893.
6. It's difficult to find semaphore system in a sentence. 用semaphore system造句挺难的
7. The semaphore system became obsolete with the introduction of the electrical telegraph, and Ta'Kenuna Tower closed in 1883.
8. Modern derivatives of the semaphore system include flag semaphore ( a flag relay system ) and the heliograph ( optical telegraphy using mirror-directed sunlight reflections ).
9. The newer flag semaphore system uses two short poles with square flags, which a signaler holds in different positions to convey letters of the alphabet and numbers.
10. The name derives from an optical telegraph that was built in 1832 on the top of the hill as part of the Prussian semaphore system between Berlin and Koblenz.
11. A pole high in the centre of the arch at the Stretford bank supported a semaphore system with two arms on each side, operated by levers at ground level.
12. In David Weber's " Safehold " series ( 2007 ), a world-wide semaphore system is used by the Church to help them maintain their dominion over the world.
13. "' Claude Chappe "'( December 25, 1763  January 23, 1805 ) was a French inventor who in 1792 demonstrated a practical semaphore system that eventually spanned all of France.
14. The "'history of telecommunication "'began with the use of smoke signals and semaphore systems emerged in Europe; however it was not until the 1830s that electrical telecommunication systems started to appear.
15. The K鰐erberg was a station in the Prussian semaphore system, which acted as a communication link between Berlin and Koblenz from 1832 to 1849 . Since 1929 the " K鰐erberghaus " has stood on the summit.
16. The 21st device listed is the earliest known description of a ship's semaphore system to be used between people on distant ships who had previously decided on a code consisting of a series of lights and fashion of standing.
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