名词
中文翻译：低频测量仪表
同义词：
['低频计', '低频率计', '低频电表']
例句：
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1.The low-frequency gauge is used to measure the strength of the magnetic field.
低频计用于测量磁场强度。
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2. The low-frequency gauge was used to detect the presence of a fault in the power grid.
低频计被用来检测电网中是否存在故障。
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3.The low-frequency gauge was used to monitor the performance of the generator.
低频计被用来监测发电机的性能。