delivery valve
... 散热装置百页窗radiator shutter 输出阀delivery valve 调治器regulator ...
OV
... OSL 调整式靠背 OV 输出阀 P- 电位计-参考信号 ...
take-off valve
... lead pipe铅管 take-off valve输出阀 weld joint焊缝,焊接接头 ...
head valve
... 横向防挠材 horizontal stiffener 输出阀 head valve (or delivery valve) 舱口盖布 hatch tarpaulin ...