electric signal
noun
A signal that is conveyed by electricity (as by variations in voltage or frequency) or operated by electricity.
Origin
Mid 19th century; earliest use found in William Thomson (1819–1890), archbishop of York.
| 单词 | electric signal |
| 释义 | electric signalnoun A signal that is conveyed by electricity (as by variations in voltage or frequency) or operated by electricity. Origin |
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