characteristic signal

例句：

1. 1. The new device has adistinctive signal that distinguishes it from othermodels.
   这款新设备有一个独特的信号，与其他型号区分开来。
2. 2. The research team identified acharacteristic signal in the data that could helppredict future trends.
   研究团队在数据中发现了一个重要的特征信号，这可以帮助预测未来的发展趋势。
3. 3. The scientist used a characteristic signal toidentify the source of the noise in theexperiment.
   科学家利用一个特征信号来识别实验中的噪声来源。