污染

Results showed that unsealed aseptic cotton carriers all were in varying degrees contaminated during the using process.

结果表明：不同包装的无菌棉签在启封使用过程中均受到不同程度的污染，时间愈长污染愈重。

With the land use change and the enhancement of human activity, the groundwater pollution index rises from the indirect recharge area via the direct recharge area to the discharge area. The same variation happens from upper reaches to lower reaches in Daxin river basin, a typical karat area in the east of Jinan spring basin where the patterns of land use and human activity changes apparently. There is a close relationship between the groundwater and land use change and human activity.

伴随土地利用方式的改变和人类活动强度的空间变化，地下水质从间接补给区、直接补给区到泉水排泄区，单项污染指数和综合污染指数依次升高；具有典型代表性的泉域东部大辛河流域，从上游、中游到下游，地下水污染物的浓度也渐次升高，且愈往下游污染物浓度增幅愈大，显示出与土地利用方式和人类活动的密切相关性。

With the land use change and the enhancement of human activity, the groundwater pollution index rises from the indirect recharge area via the direct recharge area to the discharge area. The same variation happens from upper reaches to lower reaches in Daxin river basin, a typical karst area in the east of Jinan spring basin where the patterns of land use and human activity changes apparently. There is a close relationship between the groundwater and land use change and human activity.

伴随土地利用方式的改变和人类活动强度的空间变化，地下水质从间接补给区、直接补给区到泉水排泄区，单项污染指数和综合污染指数依次升高；具有典型代表性的泉域东部大辛河流域，从上游、中游到下游，地下水污染物的浓度也渐次升高，且愈往下游污染物浓度增幅愈大，显示出与土地利用方式和人类活动的密切相关性。

The traditional LAMP type illumination machine selects the high-pressured mercury vapor lamp illumination method, in the light bulb includes the massive mercury, waste product processing troublesome, moreover can pollute the environment seriously.

传统的LAMP式的照射机采用高压水银灯发光方式，灯泡内含有大量水银，废品处理非常麻烦，而且会对环境产生严重污染，而LED式的照射机采用芯片发光，没有对环境污染的因素，使用LED式照射机，更加环保

The research is about the reuse of urban sewage for virescence irrigation, and the influence of sewage irrigation on eco-environment such as soil, plant, etc. is studied. Under the condition of field sewage irrigation, the transport and transformation and accumulation mechanism of heavy metals, nutrients and organic pollutants as vaporizable hydroxybenzene etc. in the soil-plant system are analyzed. The heavy metal pollution is evaluated by the comprehensive pollution index. The spatial variability of heavy metals in sewage irrigation area is further understood. The spatial variability of heavy metals and physical and chemical properties of soil are reflected in a more straight way by the theory model of variance function curve based on the geographical information system.

在城市污水回用于绿化灌溉对土壤、植物等生态环境的影响研究中分析了大田条件下污灌对土壤-植物体系中重金属、养分及挥发酚等有机污染物迁移转化及富集机理，对重金属污染进行了综合污染指数评价，进一步了解了污灌区重金属分布的空间异质性，基于地理信息系统提出了变异函数曲线的理论模型，更直观地反映出了重金属元素与土壤理化参数的空间变异特征。

Pyrethroid ; Initial pollution degree ; Vegetable ; Half life ; Pollution index

拟除虫菊酯；农药起始污染程度；蔬菜；半衰期；污染指数

Pollution in the city is caused by too much vehicle emission, and virescence can decrease air pollution

城市污染严重是由于过多的汽车排放造成的，绿化能减少空气污染。

The reason of serious urban pollution is overmuch automobile emission while virescence could reduce air pollution.

城市污染严重是由于过多的汽车排放造成的，绿化能减少空气污染。

The accumulation of heavy metals in the tissues from high to low is viscus, gills and muscle.

在自然界中，重金属污染往往是多种金属的复合污染，在2种重金属离子之

This means considering not only actual pollution, but also the visual pollution and destruction of our environment.

这意味着不仅考虑实际的污染，而且视觉污染和破坏我们的环境。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。