| 单词 | cathode-ray oscilloscope |
| 释义 | cathode-ray oscilloscope(CRO) An instrument based on the cathode ray tube that provides a visual image of electrical signals. The horizontal deflection is usually provided by an internal timebase, which causes the beam to sweep across the screen at a specified rate. The signal to be investigated is fed to the vertical deflection plates after amplification. Thus the beam traces a graph of the signal amplitude against time |
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