单词：ambient noise
ambient noise的用法和样例：
例句
- The civil aviation department shall take effective measures to mitigate environmental noise pollution.民航部门应当采取有效措施，减轻环境噪声污染。
- The ambient noise measurement for substations in the city plays an important role in controlling and preventing ambient noise pollution.城市中变电站环境噪声测量对控制和防治环境噪声污染起着重要作用。
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