名词
中文翻译：Unknown
同义词：
['water level indicator', 'low-level indicator', 'low-level gauge', 'low-level sensor']
例句：
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1. The low water level indicator indicates that the reservoir is running low.
低水位指示器表明水库正在减少。
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2. The low-level indicator showed that the temperature was dropping.
低水平指示器显示温度正在下降。
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3. The low-level indicator helped us to predict when the rain would stop.
低水平指示器帮助我们预测雨何时会停止。