zone of pollution的意思|示意

The results indicate that the nitrate-N leakage loss under the root zone caused by fertilizer irrigation could creat the pollution of shallow groundwater in Tangshan agricultural area.

计算结果表明，唐山农业区灌溉施肥引起根区以下硝态氮渗漏损失可造成浅层地下水的污染。

Zones in the 341 cities of the statistics (including county level municipality), 64 of them are located in SO2 Pollution Control Zone and 118 belong to Acid Rain Control Zone.

“两控区”二氧化硫污染情况统计的341个城市中(包括县级市)，有64个城市属于二氧化硫污染控制区，118个城市属于酸雨控制区。

The obtained results mean that air pollution in the nearshore zone is heavier than that over the sea area, and the same is the influence of human activity.

结果意味着空气污染近岸区重于海上区，人为活动的影响也较海上区的大。

The second zone is Changtu county, determined as the production area of pollution-free crop cultivation and animal husbandry of Tieling.

区是昌图县，定为铁岭市绿色种植业和绿色畜牧业的生产区。

The factors must be considered in optimization, these are topographic and meteorologic features, pollution sources distribution, and functional characteristics of each zone.

优化时必须考虑地形和气象特点、污染源的分布和片区的功能特征。再根据片区内主要污染物及源分布确定决策团子。

For the industrial pollution sources locating in the zone of municipal wastewater collecting system, effects of instant or accidental discharge of chemical compounds must be assessed.

位于城市污水处理厂污水收集系统区域内的工业污染源，必须考虑其突发性或间歇排放的化学物质对污水处理的影响。