steam plenum head 蒸汽腔头部

back steam chest head [动力] 汽室后盖

front steam chest head [动力] 汽室前盖

steam extraction head 抽汽母管

high pressure steam cylinder head [机] 高压气缸盖

steam pipe tee head 蒸汽管丁字头

Low pressure steam cylinder head [动力] 低压汽缸盖

steam chest head 汽室头

steam cylinder head 汽缸头

steam chest head stud 汽柜盖柱螺栓