奥氏体-铁素体区循环形变
Austenite-ferrite-repeating Deformation
城区循环经济
city proper cycle economy
多区循环反应器
Multi-zone circulating reactor
矿区循环经济
The circular economy in the mining area
闭环循环冷却水系统
closed circulate cooling water system
气升式三相外循环环流反应器
Three-phase External Loop Airlift Reactor