hearing conservation regulations

例句：

1. 1.The city has strict hearing conservation regulations for public events.
   该市对公共活动实施严格的听力保护条例。
2. 2. The school district is implementing new hearing conservation regulations to protect children's hearing.
   学区正在实施新的听力保护条例，以保护儿童的听力。
3. 3.The government has announced that they will enforce these regulations to prevent noise pollution in the city.
   政府宣布将执行这些条例，以防止城市噪音污染。