Double - wall steel cofferdam is the important facility of bridges deepwater foundation.双壁钢围堰是桥梁深水基础施工的重要设施.The other part is temporary cofferdam and the rear land - based connection project.二是临时围堰及后方陆域连接工程.Temporary pro...
Industrial orientation: Oil refining fine chemical industry engineering plastics synthetic rubber.产业定位炼油、乙烯、精细化工、工程塑料、合成橡胶.Steam condensate was produced by steam exchanging heat during oil refining.蒸汽凝结水是在石油炼制生产过程中蒸汽经换热后...