道路上的交通，甚至当道路是完全铺盖的情况下，也是灰尘、烟和悬浮质的主要排放源。
Traffic on roads, even when they are complete paved, is also a major source of dust, smoke, and aerosol emissions.
虽然个人电脑、手机和网络是主要排放源(约排放56%的废气)，数据中心的排放量增长却最快。
Although PCs, mobile phones and networks will account for most (56%) of this, emissions from data centres will grow the fastest.
机场不仅导致了噪声、交通堵塞、耕地流失，威胁鸟类，还是主要的污染源和温室气体排放源。
As well as the noise, traffic, loss of arable land and threat to birds, airports are a major source of pollution and greenhouse gas emissions.
家畜还是主要的温室气体排放源。
清洁空气法令要求主要空气污染源需获得这种许可证，以防止污染物排放量的严重增加。
The Clean air Act requires major sources of air pollution to obtain such permits before making changes that would result in a significant emissions increase of any pollutant.
它或许是甲烷的主要人为排放源，世界每年从1.3亿公顷稻谷中排放的甲烷大约为5000万至1亿公吨。
It is perhaps the main source of anthropogenic methane, with some 50 to 100 million metric tons per year emitted from the world's 130 million hectares of rice paddies.
其主要污染源为工业粉尘、烟尘，机动车排放的尾气，建筑施工及道路交通产生的尘污染。
Its main pollution sources were industrial dust, smoke dust, exhaust emission and construction and traffic dust.
除自然条件下产生的少量二恶英外，大部分均来自于人类生产活动的无意制造，其中钢铁行业是主要的排放源之一。
Besides natural condition produces a little dioxin, most of dioxin is from accidentally production activity of humankind, all of them steel industry is a major release source.
随着汽车保有量的不断增加，汽车排放已成为当今大气最主要的污染源。
Following with the sustainable growth of the automobile, its emission has been the major pollution to the air.
设置美国主要碳排放源的排放总额限制，相对于2005年的排放水平，到2020年削减17%，到2050年削减80%。
Reduces carbon emissions from major U. s. sources by 17% by 2020 and over 80% by 2050 compared to 2005 levels.
象山港海域营养元素的主要来源为陆源径流输入和海水养殖废水的排放，其次是海洋生物和大气沉降输入。
For Xiangshan Bay, main sources of nutrients are continental runoff input and the discharge of mariculture waste water, followed by Marine life and atmospheric sedimentation.
空气污染通常是与主要的固定污染源，但排放的最大来源是移动来源主要是汽车。
Air pollution is often identified with major stationary sources, but the greatest source of emissions is mobile sources, mainly automobiles.
根据污染物的年排放量，用等标污染负荷法确定了主要污染源和污染物。
On the basis of annual pollution discharge, the main pollution sources and pollutants are determined.
汽车排污已成为城市大气环境的主要污染源之一。分析了汽车排污的原因，探讨了排放控制的对策。
Motor vehicle emission has become main air pollution in the citys. This paper has discussed the cause of motor vehicle emission, and given game for controlling it.
陆源废水排放位置是影响磷酸盐浓度空间分布的主要因素。
The inshore positions of the wastewater discharge are the major factors influencing the spatial distribution of phosphate concentrations.
车用内燃机的废气排放是大气污染的主要污染源之一。
Exhaust emission of vehicle engines is one of the primary air pollution sources.
详细阐述了火花点火式发动机气缸内未燃碳氢排放的主要生成源和形成机理，并测量了不同运转参数下火花点火式发动机的碳氢排放。
In this study, in-cylinder Unburned HC formation mechanism and its major sources in si engine are clarified in detail and HC emission under different operating parameters are measured.
燃煤电站排放汞是主要的汞污染源之一。
Mercury emitted by power plants is one of the main pollution sources of mercury emission.
总结和评价了我国大气铅浓度水平、大气铅污染源的主要类型和排放特征，对今后我国大气铅污染发展趋势进行了说明。
The concentration of lead in atmosphere and the main types and emission characteristics of pollution sources in China are summarized and estimated.
污染源主要来自吉林化学工业公司排放的工业废水。
The source of pollution comes from the industrial wastewater of Jilin Chemical Engineering Company.
作为大气污染气体的主要来源之一的固定污染源的烟气排放就成为监测和控制的重点。
As the main source of air pollution, flue gas emissions have become the focus of the monitoring and control.
车用内燃机尾气排放是主要的大气污染源之一。
农田既是主要的温室气体排放源之一，也是潜在的碳汇。
Cropland is one of the greenhouse gas emission sources, but also a possible sink at the other side.
炼厂中二氧化碳排放源比较分散，提供热能、蒸汽和电力的过程会大量排放二氧化碳，制氢过程也是二氧化碳的主要来源。
The carbon dioxide emission sources of a refinery are typically widely distributed and large amounts of carbon dioxide will be emitted in the processes of supplying heat, steam and electricity.
整个南京地区的大气颗粒物中半挥发性有机物的主要污染源为燃煤源、交通排放源、燃油及矿物燃料残留物排放源、焚烧源，其贡献率分别为：44.0％、31.0％、19.9％、4.7％。
The main pollution sources are coal combustion, traffic emission, the residue of oil or mineral combustion and burning emission which accounts for 44.0%, 31.0% 19.9% and 4.7% of SVOCs, respectively.
整个南京地区的大气颗粒物中半挥发性有机物的主要污染源为燃煤源、交通排放源、燃油及矿物燃料残留物排放源、焚烧源，其贡献率分别为：44.0％、31.0％、19.9％、4.7％。
The main pollution sources are coal combustion, traffic emission, the residue of oil or mineral combustion and burning emission which accounts for 44.0%, 31.0% 19.9% and 4.7% of SVOCs, respectively.
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