名词短语
中文翻译：长持续时间的工频电压耐受试验
同义词：
['long duration power frequency voltage withstand test', 'long duration power-frequency voltage withstand test', 'long duration power-frequency voltage withstanding test']
例句：
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1. The company conducted a long duration power-frequency voltage withstand test to ensure the equipment's reliability.
该公司进行了一次长持续时间的工频电压耐受试验，以确保设备的稳定性。
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2. During the testing process, the engineers carefully observed the machine's performance and recorded data for future analysis.
在测试过程中，工程师们仔细观察了机器的性能并记录了数据以便未来分析。
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3.This test is crucial for assessing the equipment's ability to withstand high voltage conditions during prolonged operation.
这次试验对于评估设备在长时间运行中能否承受高电压条件至关重要。