名词
中文翻译：频率漂移
同义词：
['frequency shift', 'frequency variation']
例句：
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1. The signal's frequency drifted over the last few days.
信号的频率在过去几天里发生了漂移。
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2. The scientists noticed a significant frequency drift in the data.
科学家们注意到数据中出现了显著的频率漂移。
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3. The radio station reported that their frequency had drifted slightly higher than usual.
该电台报告说，他们的频率比平常略高一些。