名词
中文翻译：表面指示器
同义词：
['Surface Indicator', 'Surface Indicator Device']
例句：
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1. The surface indicator on the control panel shows that the temperature is stable.
控制面板上的表面指示器显示温度稳定。
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2. The surface indicator device was designed to detect the presence of oil in the engine.
表面指示设备被设计用来检测发动机中的油。
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3. The surface indicator device is essential for monitoring the health of the plant.
表面指示设备对于监测植物的健康至关重要。