【医】 反压, 托[持]压

不要安装在可能产生反压力的地方。

摘要提出了双涡圈压缩机背压孔开设的原则，并建立了双涡旋背压孔的热力学模型和传热学模型；在今后设计研发具有双涡旋的涡旋压缩机的背压孔的开设提供了依据。

back-pressure brake (Riggenbach brake)

back-pressure steam turbine

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】