网络释义
1)FPR Fuel Pressure Regulator,油压调整阀2)adjustment of oil pressure,油压调整3)vibration cooling valve charge relief valve pressure setting,振动冷却阀充油安全阀压力调整4)oil pressure regulating valve,机油调压阀5)oil-pressure adjusting valve,油压调节阀6)oil release valve,油压调节阀，油压安全阀