...防潮建筑材料 Insulating buildings against moisture (Substances for –) 漂浮的防污染障碍物 Anti-pollution barriers (Floating –) 石棉填料 Asbestos mill boards ..
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If so, it is hard to say what has helped: anti-pollution measures, algae barriers in the water or the deployment of algae-scooping teams.
如果是这样的话，到底有所改善的原因是什么还很难说，到底是抗污措施做得好呢，还是水里设了水藻障碍物，还是打捞水藻队伍的努力起了作用呢？
The traffic jam, energy wasting and air pollution caused by special geographic environment of Chongqing become the main barriers to construct a harmonious metropolis.
特殊自然地理环境造成的交通拥堵、能源浪费和空气污染已经成为重庆市建设和谐大都市的主要障碍。
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