Warning flags at stations throughout town, he said, announce the risk level of an eruption, from green, indicating low danger, to red, meaning an eruption is imminent.

他表示，观测站的预警标识在戈马城到处都有，这些标识会显示喷发的风险等级，绿色代表低危险性，红色则代表喷发即将来临。

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WARNING: After running this low level format tool, the whole disk surface will be erased.

警告：这低级格式化工具运行后，整个磁盘表面将被删除。

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Low water water level warning electric heater stop, heat, water pump mend water automatically;

低水水位报警电加热器停止加热，水泵自动补水；

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The Broadcasting Code states that broadcasters must take precautions to maintain a low-level risk to viewers who have photosensitive epilepsy and should give warning if they do go ahead with such lighting.

BBC: X Factor rapped by Ofcom over CD promotion

Knowing that the atmosphere could produce a strong tornado, they immediately issued the tornado warning as soon as the Doppler radar started to show low-level rotation within the storm.

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