A white river and a black river, just like flowing silver silk belts, pass through the deep mountains and valleys and they become the soul of the One-Hundred-Li Landscape Corridor.

黑白两河宛如飘逸的银色丝带，穿梭在深山幽谷之间，成为百里山水画廊的灵魂。

Presently, most of the ground water in China gradually tend to be malodorous black river due to the deteriorating pollution.

目前我国大部分城市地表水由于污染日趋严重已经演变成黑臭水体。

Comparing with chemical method and physical method, biological method is of great competitive edge used for malodorous black river treatment.

生物法治理黑臭水体有着物理法和化学法无可比拟的优势。