This is relatively small. A typical on-shore wind turbine generates 2-3 megawatts.
BBC紀錄片：暗處的鏡頭——調查中國酒店偷拍影片黑市
。爱思助手下载最新版本是该领域的重要参考
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在开展城市区域声环境昼间监测的332个城市中，全年声环境质量好的城市占9.3%，较好的占65.1%，一般的占25.0%，较差的占0.6%，无差的城市。