| 单词 | reference noise |
| 释义 | reference noise [`ref·rǝns ´nȯiz] ELECTRONICS The power level used as a basis of comparison when designating noise power expressed in decibels above reference noise (dBrn); the reference usually used is 10-12 watt (-90 decibels above 1 milliwatt; dBm) at 1000 hertz. |
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