TEMA中的R等级是指什么? tema换热器分为r,c,b三个级别: r: for the generally severe requirements of petroleum and related processing applications. (石油化工及相关过程的应用) c: for the generally moderate requirements of commercial and general process applications. (商业和常规过程中较高要求的应用) b: for chemical process service.(化学过程的应用) 网上查阅的资料,自己翻译的,不知对不?同学习了查看更多