This paper introduces the impacts of automobile exhaust gas pollution, traffic noise, etc. on ecological environment and human healthy, and discusses their control countermeasure.
本文介绍了汽车排气污染、交通噪声等对生态环境和人类健康的危害，探讨了调控对策。
2
This paper analyzed the pollution characteristics of construction noise at ports, presented the prediction method of construction noise, and put forward the harmlessness countermeasure.
本文对港口建筑施工噪声的污染特性进行了分析，介绍了施工噪声的预测方法，并提出了防治对策建议。
3
This paper presented a new counter-countermeasure method, known as two way anti frequency coherent method, to counter the noise frequency modulation disturbance.