名词短语
中文翻译：正常指示器
同义词：
['normalindicator', 'standard indication']
例句：
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1. The switch is a normal indicationof the system's operation.
开关是系统运行的正常指示。
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2. The normal indication of thetemperature sensor is displayed on the screen.
温度传感器的正常指示显示在屏幕上。
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3. The normal indicationof the device's functionality was notmet during testing.
设备的功能正常指示在测试中未得到满足。