The shadow and block efficiency of the heliostats in the heliostat field considering the shadows of the tower in the tower Solar Power Plants(SPPs)has been obtained by geometry optics.
An experimental installation of column aeration system using activated sludge process was set up to treat brewery wastewater.
采用塔式曝气活性污泥法进行了啤酒废水的处理研究。
The development about tank stripping,tower stripping,direct drying method and phase separation method of cis-1,4-polybutadiene rubber solution were reviewed with 25 references.