名词
中文翻译：电压表
同义词：
['voltmeter', 'voltmeter', 'voltage meter']
例句：
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1. The engineer used a VU meter to measure the power output of the generator.
工程师使用了一个电压表来测量发电机的输出功率。
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2. The technician adjusted the VU meter to ensure accurate readings.
技术员调整了电压表以确保准确的读数。
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3. During testing, the VU meter showed that the circuit was functioning properly.
在测试期间，电压表显示电路正常工作。