管线周围环境
pipeline’s surrounding environment
污染周围环境
surrounding environment pollution
城市环境噪声
urban environmental noise
城市区域环境噪声
urban environmental noise
复杂噪声环境
complicated noise environment
海洋环境噪声
the ocean environment noise
ocean ambient noise
marine ambient noise
ambient noise
ambient sea noise
ambient ocean noise
海洋环境噪声级
ocean ambient noise level
环境噪声等级分布
distribution of environmental noise level
环境噪声监测
environmental noise monitoring
环境噪声评价系统
environmental noise impact statement system
环境噪声抑制
Environmental noise cancellation