The level of pollution in the river was falling.
该河流受污染的程度其时正在降低。
What concerns scientists is the increasing level of pollution in our citics.
科学家关注的是我们中信证券污染水平的日益提高。
Another difficult question involves what level of pollution is safe.
另一个难题是什么样的污染水平是安全的？
What concerns the scientists is the increasing level of pollution in our citics.
围绕科学家的是城市的污染日益严重。
There's broken glass everywhere, there's rusted barbed wire everywhere, the level of pollution is insane.
到处是碎玻璃，到处是生锈的铁丝网，污染的状况让人疯狂。
Air quality is declining steadily, and the air in many cities has reached a serious level of pollution.
空气的质量在不断下降，部分城市的空气已达到严重污染的程度。
It is of great significance for some of the mines using model LK-1 LHDs in our country to reduce their level of pollution.
改造LK——1型铲运机，以降低其污染水平，对我国某些使用这种设备的矿山具有重要的意义。
These cores show that the level of pollution, especially soot, in Himalayan glaciers correlates with emissions in Europe and South Asia.
这些冰心不仅表明了此地的污染程度，更重要的是说明了喜马拉雅山冰川上的烟灰与欧洲和南亚的排放相关。
Data from three of the pigeons, called Coco, Julius and Norbert, will then be used to instantly reply, telling them about the level of pollution in their area.
名为可可、朱利叶斯和诺伯特的三只鸽子收集的数据被用来即时回复市民消息，告知市民所在地的污染水平。
According to Zijin, 9,300 cubic meters of water leaked into the Ting River 'causing a certain level of pollution' over the nearly 24 hours it took to plug the flow.
根据紫金矿业的说法，9,300立方米的废水泄入汀江，紫金矿业用了其近24小时封堵，在此期间导致了一定程度的污染。
Jackson said the EPA will now instruct its local offices not to approve new valley-fill permits that are likely to produce a certain level of pollution in waters downstream.
杰克逊认为环保署将会指导当地部门不再批准有可能会污染水源的采矿申请。
Prices and quantities also determine the amount of environmental resources used and the level of pollution generated as the entities in the market carry out their activities.
价格和数量也决定了市场中各实体在进行经济活动时使用的环境资源的数量和所造成的污染程度。
Her monitor has shown that air pollution levels are higher closer to ground level, which has helped highlight concerns that babies and young kids may be at higher risk of developing lung problems.
她的监测仪显示，越是接近地面，空气污染水平越高。这凸显了人们的担忧，担心婴儿和幼童患肺部疾病的风险可能会增加。
He points proudly at one of the screens, which shows that pollution in the city is better than the level considered to be safe by the World Health Organisation.
他非常骄傲地指着其中一个屏幕，屏幕上显示着在这个城市的污染水平比起世界健康组织界定的安全污染水平要好很多。
For example, when burned in vehicles, even the most ecologically acceptable sources of ethanol create air pollution that will cause the same mortality level as when gasoline is burned.
举例来说，如果作为汽车燃料，即使最环保的乙醇，其造成的空气污染也会导致和燃烧石油同样的死亡率。
Air pollution in Beijing reached a high level of 99 on the Air pollution Index on Friday as a sandstorm from the northwest shrouded the capital in dust, the China News Service reported.
据中国新闻社报道，北京市区13日遭遇了来自西北方的沙尘袭击，当天该市污染指数一度达到99。
Nevada has the lowest level of water pollution in the country because the generally arid state has very little fresh water to dump toxins into.
因为干旱，该州没有淡水来排放有毒物质的缘故，内华达州是美国水污染最轻的。
Thestudents provided Numbers on the level of air pollution in London 1952 and Ihave compared these to recent Numbers for Beijing.
这些学生提供了1952年伦敦空气污染水平的一批数字，我把它们与北京的最近数字做了比较。
The quality of our living conditions have been reduced to a low level we can hardly bear the pollution here.
我们居住环境的质量已减少到较低的水平我们几乎不能忍受那里的污染。
Monitoring data showed the Air Quality Index in most parts of the capital reached 500, the maximum pollution level, on Sunday, the third consecutive day of severe smog.
监测数字显示，周日，首都北京大部分地区的空气质量指数均达到500，即污染程度的最高上限，北京的雾霾天气已持续三天。
Studies on dynamics of microcystin pollution level in municipal water supplies.
城市供水藻毒素污染水平的动态研究。
The pollution state of NP and OP in this area was serious relatively, compared with Peal River delta; and medium or lower level compared with the similar areas abroad.
与珠江三角洲相比，该地区NP和OP污染情况较为严重，与国外其他类似区域相比则处于中等或较低水平。
The results showed that the level of fluorine pollution in fruits is related to the distance from fruit trees to the brickkiln and the variety of fruit trees.
结果表明，水果受氟污染的程度与果树距砖厂的距离及果树的种类有关。
VOC is the main cause of interior air pollution, the environmental level of the decorate materials, furniture and others is connected with the quality of interior air directly.
VOC是造成室内空气污染的重要原因，室内装饰材料、家具及用品的环保程度直接关系到室内空气的质量。
With the rapid development of urban construction, the urban afforestation is on a higher level, which results in more seriousness of pollen allergy pollution.
随着城市建设的迅猛发展，城市绿化水平也不断提高，但这带来了花粉污染与过敏现象的日益严重。
Analysed the close connection of the level of water pollution with environment and human 's activity, the valuable suggestion was advised on how to administer the polluted water.
分析了水体污染程度与环境和人为因素的密切关系，对被污染水体的治理提出了有价值的建议。
The main eco-environmental problems in Southern Shaanxi Province were revealed, which include soil and water loss, frequent geological hazards, and the low level of environmental pollution prevention.
阐述了陕南地区目前所存在的水土流失、地质灾害频发，环境污染防治水平低等主要生态环境问题的现状。
The form of the boiler micro-computer control system is represented herein. The system is meaningful because of energy-save, higher operation management level and less pollution.
锅炉微机控制系统的构成。该系统能保证锅炉既节能又可提高锅炉的运行管理水平，减轻环境污染，是一件具有意义的工作。
The form of the boiler micro-computer control system is represented herein. The system is meaningful because of energy-save, higher operation management level and less pollution.
锅炉微机控制系统的构成。该系统能保证锅炉既节能又可提高锅炉的运行管理水平，减轻环境污染，是一件具有意义的工作。
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