【名词&注释】
润滑油(lubricating oil)、压缩机(compressor)、减压阀(pressure reducing valve)、自力式(self-operated)
[单选题]氢气循环压缩机的隔离气是通过自力式(self-operated)减压阀1904-PCV-1801将其压力调整为()MPaG
A. 0.35MPa B. 0.15MPa C. 0.25MPa D. 0.3MPa