point-source pollution ,nonpoint-source pollution是什么意思在翻译一篇关于地下水污染文章时有point-source pollution and nonpoint-source pollution这2种污染种类~

point-source pollution ,nonpoint-source pollution是什么意思在翻译一篇关于地下水污染文章时有point-source pollution and nonpoint-source pollution这2种污染种类~ 查错：However,with the governance of the on point source pollutionHowever,with the governance of the on point source pollution,the non-point source(NPS) pollution drew people’s close attention day by day.on point 的on 是不是多余了? 英语翻译but it also can help point the way to the source of the logic mistake这句话怎么翻译 point point point Point::Point(Point & 翻译source Open Source source of source意思 The source Source Interface 英语翻译A point source of light is placed in a liquid.Light rays from the source leave the liquid surface through a circular area of radius 10 cm .The refractive index of the liquid is 1.3.The depth of the source below the liquid surface is?A.5.7 英语翻译It is common to use mathematical models to estimate how point source discharges influence concentrations within receiving waters.Although the residuals have been modeled in streams,lakes and estuaries,this introduction considers only stre point for point是什么意思 英语翻译source of the Open Source community