查询词典 polluted

In Cr polluted area, leaf vegetable's Cr uptake is 2~3 times as much as fruit vegetable's. Aiming at optimization of manuring level of silicates and humic acid, pot experiments were carried out to study the effects of silicates and humic acid on physiology and Cr uptake by Brassica Chinensis.

针对在铬污染区土壤中的叶菜类吸铬量是果菜类2~3倍，以及硅酸盐或腐植酸在重金属污染土壤上的最佳施用量研究较少的问题，为保障蔬菜的品质安全，文章通过土壤盆栽试验，研究硅酸盐、腐殖酸不同用量对Cr污染土壤中小白菜生理指标和吸铬量的影响。

But unfortunately, air is also so polluted that they have to wear masks.

但不幸的是，空气污染也是如此，他们不得不戴上口罩。

Due to food pressure, grain product in the western Jilin Province will be enhanced in the near future. Farmland areas in the area will be decreased slowly in the near future, but with the technique development of irrigation establishment, paddy areas and utilization amount of fertilizer and pesticides will be increased rapidly. So, the NPS pollution from farmland will be more serious. The main lakes in the areas such as Moon Lake and Qagan Lake have been polluted by N and P, and the content of salt in the Nenjiang River has been increasing since last 30 years. All of these show that the negative effects of NPS pollution in the area have been serious and should not be neglected by the scientific research and corresponding government management. To deal with the contradiction of agriculture development and water pollution, the trend of increasing paddy area and using amount of fertilizer, pesticide and herbcide in the western Jilin Province should be controlled. Also, the drainage of return flow from paddy should be controlled and return flow should be disposed with ecotechniques by use of the large areas of lakes and mires in the area. Through these measures, the quality of surface water could be protected and the degeneration of ecoenvironment in the area could be contained.

我国由于粮食压力，未来吉林西部的粮食生产还将进一步加强，随着种植业结构的调整，垦殖率会略有下降，但随灌溉设施的建设与完善，水田面积将进一步扩大，化肥、农药的用量还将快速增加，农业活动引起的非点源污染将更加突出，而研究区的主要湖泊月亮湖、查干湖目前已达中等富营氧化水平，嫩江水质的咸化趋势明显，因此农田非点源污染物的流失及其内流区外流化面积的增加对地表水体富营养化、咸化的作用愈来愈明显，农田非点源对地表水水质的影响已不容忽视，应引起社会的关注，为协调农业发展与水污染这一矛盾，吉林西部应遏制化肥、农药施用量增长过快和水田过度开发的势头，控制洗盐回归水的排放量，利用区内广泛分布的大量泡沼对农田径流和回归水进行生态处理，既保护了地表水的水质，又有利于生态环境的改善。

Our own planet Earth is becoming more and more crowded and polluted.

我们自己的行星地球正变得越来越拥挤且污染越来越严重。

Our own planet, Earth, is becoming more and more crowded and polluted.

我们自己的星球---地球，正变得越来越拥挤，污染越来越严重。

Our own planet, Earth, is becoming more and more crowded and polluted.

我们自己的星球——地球正在变得越来越拥挤，污染越来越严重。

Our own planet Earth is becoming more and more crowded and polluted.

我们自己的行星地球正变得越来越拥挤且污染越来越严峻。

More and more waste and poisonous gases have polluted the air, and the air in turn pollutes the rain.

越来越多的废气和有害气体污染了空气，而空气反过来对雨水又造成污染。

That area is large, and yet it covers just 19 percent of the suitable Southwest land. Most of that land is barren; there is no competing use value. And the land will not be polluted.

虽然这个土地面积很庞大但是这只占有西南地区土地的19%，这些土地大多荒芜，没有相互竞争的使用价值，而且架设电厂不会造成污染。

In the paper,the prevention and control of adverse impacts on the environment induced by such factors as dust,exhausted air,noise,polluted water and waste mucks are presented,with the emphasis being placed on the expatiation on the protection plan for the air environment inside tunnels and on the principle and methods of the air measurement system.

介绍了铁路隧道施工中对环境造成影响的各项因素，主要针对隧道的粉尘、废气、噪音、污水、废碴的防治进行了全面阐述，并重点阐述了隧道内空气环境的保护方案以及空气检测系统的原理和方案，可供隧道工程及环保工作人员参考。

He became prime minister in 1997 and won international acclaim for his role in the Northern Ireland peace process.

他在1997年成为总理，并且因为在北爱尔兰的和平进程中发挥的作用受到国际社会的赞许。

Mixed Page Sorting Method Using the cuttable user model, this thesis proposes a mixed page sorting method by using cutted user model in server-side and complete user model in client-side.

隐私分级利用的混合式页面排序方法针对个性化搜索中搜索结果排序的问题，本文利用隐私可控开放的用户偏好模型，提出一个在客户端和服务器端分步进行的隐私分级利用的混合式页面排序方法。