压力控制弹簧    pressure control spring

调压阀    pressure governor

转向控制阀压力降    pressure loss in steering control valve

滤膜气泡点压力    pressure of air bulb in film

压盘    pressure plate

调压阀    pressure regulating valve

调压阀    pressure -regulator vavle

压力环    pressure ring

压紧弹簧    pressure spring

压力报警传感器?    pressure warning sensor

压差控制阀（优先阀）    pressure-gradient control valve

冲压焊接桥壳    press-welding axle housing

主腔    primary chamber

原始特性    primary characteristic

主皮碗    primary cup

领蹄（紧蹄）    primary shoe(leadijg shoe)

初级供电电流?    primary supply voltage

初级绕组?    primary winding

先导阀    priority valve

概率密度分析仪    probability density analyzer

换档规律    process of power shift

限压阀    proessure limiting valve

眼睛投影点    projected eye point

投影设备?    projection equipment

突出型火花塞?    projectred nose type spark plug

换档品质    property of automatic shft

换档定时    property of automatic shift

比例阀    proportioning valve

防尘性?    protection against dust

防水性?    protection against ingress of water

保护压力装置    protection pressure device

凸起?    protuberance

拉杆导套    pull rod guide collar

拉杆（拉绳）    pull rod(pull wire)

吸引线圈?    pull-in winding

脉动    pulsating

脉冲    pulse

脉冲周期?    pulse cycle time

脉冲发生器?    pulse generator

脉冲极性    pulse polarity

脉冲重复频率?    pulse repetition rate

脉冲宽度?    pulse width