【机械工程】回压蒸气轮机【机械工程】废汽涡轮

back-pressure brake (Riggenbach brake)

steam engine plant with back-pressure turbine

back-pressure manometer

back-pressure valve【油气】

back-pressure valve

hydraulic back-pressure valve

back-pressure test【油气】;back-pressure testing【油气】

Riggenbach brake (back-pressure brake)