为研究水流流速对投加生物促生剂修复水质效果的影响，进行了实验室小试。

Study on Sediment Impact of the River Water Quality Improvement by Injecting Bio-energizer;

youdao

为研究水流流速对投加生物促生剂修复水质效果的影响，进行了实验室小试。

Study on Sediment Impact of the River Water Quality Improvement by Injecting Bio-energizer;

youdao