求翻译：研究生物滞留技术对城市雨水的调控效果和机理、设计及优化等，为该技术在我国，特别是西北旱区的应用与推广奠定基础。是什么意思？

The study of biological retention regulation effect and mechanism of urban stormwater, design and optimization of the technology foundation in our country, especially the application and promotion of the northwest arid.

Research on biological technologies to stay in the city stormwater regulation and control results and the rationale, design and optimization, and so on, as the technology in our country, particularly in the north-west of the arid zone with the promotion application.

正在翻译，请等待...

Study on bio-retention technique on the effect and mechanism of regulation of urban rainwater, such as design and optimization, for the technology in China, especially in arid areas in Northwest China's application and promotion Foundation.

The research biology detention technology to the city rain water regulative effect and the mechanism, the design and the optimization and so on, for this technology in our country, specially northwest dry area application and the promotion lays the foundation.