炼厂排放源为不规则的无组织排放的面源，数据在该区域具有代表性的点上测出。
Emission sources in this plant are irregular and unrestrained effluent surface sources and data are collected by detecting representative points in the said area.
美国和欧洲监管机构正在加紧对过度排放的控制，例如设施泄漏，监控反应堆通风口及锅炉点源排放的废气。
Regulatory agencies in both the us and Europe are tightening controls on fugitive emissions, such as equipment leaks, as opposed to point-source emissions from reactor vents or boiler exhaust stacks.
根据排放方式的不同，水体污染可以分为点源污染和非点源污染两大类。
The water pollution can be divided into two major categories of point source and area-source pollution according to the different way of discharge.
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