chemical water pollution的意思|示意

Chemical oxygen demand (COD) is a synthetical indicator which represents the degree of organic pollution in water.

化学需氧量(COD)是表征水体中有机物污染程度的一个综合性指标。

The pollution of soil, water and atmosphere caused by dung pollution of animal breeding and inappropriate application of chemical fertilizer has received more and more attention.

畜牧业养殖产生的粪便污染和不恰当施用化肥而导致土壤、水质和大气污染已经引起人们越来越多的关注。

The natural degradation speed of the pollution of chemical pollutants in the soil is very slow under a natural condition, so a long-time pollution source to underground water is formed.

土壤中的化学污染物在自然条件下污染自然降解速度非常缓慢，形成对地下水的长期污染源。

Though time goes by, the purest sea water and air maintains, which is rare and commendable. No industrial pollution or chemical factories can be seen within the area.

更难能可贵的是无论时间如何流转，这里始终保留了自然中最纯净的海水和空气。

Percarbamide is an important chemical product. It is widely used in industry, agriculture, medicine for its high active oxygen content, stable, quickly soluble in water and no pollution.

过碳酰胺以其活性氧含量高、易溶于水，水溶液较隐定、无毒无公害等特点，在工业、农业、医药等行业已得到广泛应用。

When chemical plants first developed, safety and the environment were not usually greatly considered, resulting in air and water pollution, and poor safety practice.

化工厂刚刚出现的时候，对安全和环境问题一般都没有给予足够的重视，因此造成了空气污染、水污染和不安全运作等问题。