单词	上文所引
释义	同Aforecited
随便看	noise label noise lamp noise lamp ignitor noise-- laser noiseless noiseless approach noiseless channel noiseless (clean) earth (ground) noiseless coding noiseless coding theorem noiseless earth noiselessly noiselessness noiseless pulse noiseless recording noise level noise level analyzer noise level measurement noise level meter noise level {=nl} noise level of atmospherics noise level (power system) noise level reference point noise level statistical analyzer noise-level test