pumping concrcte

• 泵送混凝土

pumping concrcte的用法和样例：

例句

1. At present, excessive pumping concrete, pumping concrete in order to ensure the availability of pumps, pumping concrete, often adding an appropriate amount of air-entraining agent.
   目前泵送混凝土用量过大，为了保证泵送混凝土的可泵性，往往在泵送混凝土中加入适量的引气剂。