First, the distance between the anode and cathode should be increased enough in order to limit the secondary reaction.
提高电流效率的途径有两条：一是增大阴、阳极间距，减小副反应的发生；
2
This is an adventurous attempt for extending application of anode protection method, which is also the first time to be used on a small pressure vessels in Qingdao Petrochemical Co.