It was a quantitative target for describing of self-purification capacity of water environment of area.

它是描述一个地区水环境自净能力大小的定量指标。

youdao

According to the calculating principle of wind scale and earthquake magnitude, the concept of the magnitude of self-purification capacity of water environment of area was put forward.

根据地震等级和风力等级的计算原理，提出了区域水环境自净能力等级的概念。

youdao

So, the pollution of water environment of China is not only an area problem, but a nationwide problem.

可见中国的水环境污染已不是一个区域性的问题，而是一个全国性问题。

youdao

"We have a team onsite and we are also working closely with Environment Agency Wales to minimise the impact of the burst on the surrounding area, " the water company said.

BBC: Clwyd Estuary: Rhyl sewage spill warning