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安裝中文字典英文字典辭典工具!
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- Wigwag (flag signals) - Wikipedia
Wigwag (more formally, aerial telegraphy) is an historical form of flag signaling that passes messages by waving a single flag It differs from flag semaphore in that it uses one flag rather than two, and the symbols for each letter are represented by the motion of the flag rather than its position
- WIGWAG Definition Meaning - Merriam-Webster
The meaning of WIGWAG is to signal by wigwagging
- WIGWAG definition and meaning | Collins English Dictionary
3 meanings: 1 to move (something) back and forth 2 to communicate with (someone) by means of a flag semaphore 3 a a system Click for more definitions
- The Wigwag: Classic Grade-Crossing Signals - American-Rails. com
The wigwag stands as a testament to the ingenuity and innovation of early 20th-century railway engineers Its distinctive swinging motion, combined with the flashing lamp and rhythmic bell, provided an effective and reliable warning system that greatly improved safety at railroad grade crossings
- The Flagman Catalog - Google Sites
The Automatic Flagman signal, Magnetic Flagman (from Magnetic Signal Co ), Magnetic AutoFlag (from Railroad Supply Co ), or more commonly, the "wigwag", is an early grade crossing signal made
- WIGWAG Definition Meaning - Dictionary. com
Wigwag definition: to move to and fro See examples of WIGWAG used in a sentence
- wigwag - Wiktionary, the free dictionary
The wig-wag [an instrument measuring solar radiation] utilizes the principle that the gaseous phase of a volatile liquid expands as a result of the conversion of radiant energy to sensible heat It requires only a reading of the count at whatever interval the observer chooses
- Wigwag - definition of wigwag by The Free Dictionary
Simple, mobile, and lightweight, the wigwag system used flags during the day and torches at night to communicate at distances beyond sound, but within line of sight depending upon terrain and weather conditions
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