Electronics. A line on a cathode ray tube display providing a scale of time or representing the time axis, typically a horizontal straight line.
| 单词 | θ78513 | 
| 释义 | the world > matter > physics > electromagnetic radiation > electronics > electronic devices or components > cathode-ray tube > 			[noun]		 > line or pattern on screen > line repeating axis (1)		 time base1923 Electronics. A line on a cathode ray tube display providing a scale of time or representing the time axis, typically a horizontal straight line. | 
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