reduction of pollution at source.
在源头上减少
。
, 弄脏物质;物质;
，生态;;水;
，空气控制源预防；防止控制；水防治控制；大气控制指数负荷；度；量reduction of pollution at source.
在源头上减少。
to prevent the pollution of the environment
防止
carbon monoxide pollution
氧化碳
the level of pollution in the air is rising.
空气
水平正在上升。
low-level ozone pollution is the real culprit.
低层臭氧是真正根源。
pollution had become a dead issue.
已经成了过去问题。
The main source of Dioxin pollution is rubbish cineration.
垃圾焚烧是城市中二口恶英主要来源。
a clamor in the press for pollution control.
在报纸上对控制呼吁
The new law will reduce pollution of the rivers.
这条新法律将会减轻河流。
health effects of fluorine pollution
氟对健康影响
This article summarized the indicating function of bryop hyte to air pollution, heavy metal pollution and mineral resources.
综述了苔藓植物对大气、重金属和矿藏监测指示作用。
a report linking ill health with industrial pollution
说明健康不佳与工业有关系报告
The countryside has been ravaged by pollution.
乡村受到破坏。
All pollution is simply an unused resource.
所有只不过是种未被利用资源。
a survey by the government’s water pollution watchdog
政府水质监察组织进行调查
a commission to investigate a link between pollution and forest decline.
个调查和森林面积减少之间联系委员会。
pollution could bring the authority's name into bad repute.
问题可能会搞坏那位权威人士名声。
California's air pollution guidelines are stringent.
加州制定空气标准很严格。
problems respecting air pollution in cities
关于城市空气问题
We must abate the noise pollution in our city.
我们必须消除我们城里噪音。
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